Matt Hedges' Quiet New Role in Dallas

Matt Hedges' Quiet New Role in Dallas

This past offseason Dallas hired Academy Director Luchi Gonzalez as the teams new head coach and Oscar Pareja’s replacement. Gonzalez was commissioned with the task of integrating the organization’s youth with the first team. This is a rather fitting assignment since over the last three years Gonzalez was, as mentioned, the Academy Director.

Obviously Gonzalez is going to be the one who best knows what Dallas has in terms of young talent, and how to find a tactical style that best fits their pieces. He’s brought with him fresh tactics to incorporate the young talented players, and he comes at a time when Dallas needed a twist to their first team’s style. The departure of Mauro Diaz, the little unicorn, has caused consternation in how the attack operated after his transfer and lead to issues of its own last summer.

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Building a System for Assessing Player Value

Building a System for Assessing Player Value

For years I’ve been interested in how players contribute to team results.  I’ve sought a measure of player contributions to a win that covered all aspects of a game. While many valuable and informative soccer metrics have been created, common stats are not entirely on point with this issue.

For example, xG stats apply only to scoring attempts, and perhaps goalkeepers. Adding xAssists and key passes broadens the scope of included players. But the contribution of defensive oriented players would not be expected to show up on these metrics. And offensive-oriented players would still rely on teammates to threaten the net before their effort can be measured.

The xGChain metric is useful for identifying players that participate in the most productive attacks, and includes players that play further away from the goal. But this metric does not include non-offensive actions. And each players’ contribution is given equal weight, whether it’s the initial square pass to a CB in the defensive half, or delivering a cross into the penalty area. Experienced analysts consider the dashboard of key performance indicators and piece together insights from the elements.  But I’m looking to consolidate all game elements with a common perspective.

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Darlington Nagbe may have finally arrived

A few days ago, Matt Doyle (aka the Armchair Analyst) called our attention once again to the amazing things that Darlington Nagbe does with a soccer ball.

Nagbe has the ability to do the sorts of things that great players often do. Those miraculous moments that freeze time and leave you wonder struck. Last year it seemed like there were fewer of those moments than in years past. But as Doyle pointed, though it's early, Nagbe looks to be headed in the right direction. 

Average Timber player Usage Rate 2013-2015 was roughly nine percent

Average Timber player Usage Rate 2013-2015 was roughly nine percent

By raw usage, he looks the same as always (about 10.5%). Usage is measured in touches divided by team touches. But as a proportion, his touches have led to either him taking more shots or his teammates taking more shots. So while he's touching the ball about as much, his touches are more dangerous.

Looking at the shots he creates per pass, we really see the meat and potatoes of Nagbe's growth and influence. In 2014, his shots created (shots + key passes) represented just 2.4 percent of his total passes. Now, we're seeing that ratio up closer to eight percent. This is pretty significant if you look at the the company he's enters. He is contributing to the attack thus far in 2015 at a Graham Zusi/Federico Higuian level, rather than hanging around in Harry Shipp/Dillon Powers.

This isn't to say that Shipp or Powers aren't good players. They are, and the majority of MLS teams would been keen to get their hands on either of them, but they aren't great, game-changing talents. This feels like the first time Nagbe's numbers actually corroborate the skill that he shows on a weekly basis out on the pitch. With all the requisite warnings about sample size, it might just be that Nagbe is finally entering into that next tier of player, a moment that has been much anticpated by many Timbers fans and pundits a like.

Individual Defensive Statistics: Which Ones Matter and Top 10 MLS Defenders

When a car breaks down, a mechanic's job is to tell you what caused the failure. He or she can generally pinpoint the problem to a specific part reaching the end of its useful life. But have you ever asked a mechanic why your car is working fine? Or which part deserves the most credit for your car running smoothly? Of course not. That would be a waste of everyone's time. There are many parts to a car and all are doing their job as designed. We never ask why when things are going well. The same dilemma exists in assessing soccer defenders. After all, most of how we assess defenders has to do with what goals were not scored. And when all the parts of the defenses are working as designed, goals are avoided. But which defenders deserve the credit when goals aren't scored? It's like the pointless car question, which parts of the car deserve the most credit when the car runs smoothly?

To even begin this conversation we need to take stock of what data exists for soccer defenders. And just to be clear, I am going to steer clear looking at a defender's offensive capability. I want to focus solely on defensive statistics. Whoscored is the only site that offers a collection of defensive statistics, and here is what they have and their definitions.

  • Blocked Shot: Prevention by an outfield player of an opponents shot reaching the goal
  • Clearance: Action by a defending player that temporarily removes the attacking threat on their goal/that effectively alleviates pressure on their goal
  • Interception: Preventing an opponent's pass from reaching their teammates
  • Offside Won: The last man to step up to catch an opponent in an offside position
  • Tackle: Dispossessing an opponent, whether the tackling player comes away with the ball or not

These are the defensive-oriented statistics offered by Whoscored that are tracked at the individual player level. Of course, the other vital defensive statistic is shots conceded but those can't be attributed to any one player. So then, do any of these statistics matter? First there are a couple of assumptions to iron out.

A defender should be judged by the rate at which he accumulates statistics. So to get to that number we need to adjust these statistics to account for the time that the opponent has the ball. For example, Player A who averages 5 clearances per game might be better than Player B who averages 6 clearances if Player A's opposition had the ball 20% less often. That would mean player A made more clearances given the opportunities provided to him. So I will adjust all metrics by opposition possession.

Since I am trying to assess what goals are not scored, I going to look at the numbers at the team level first. It is only at the team level that goals can be attributed. After that analysis I will attempt to attribute value to the individual metrics.

sources: whoscored, mlssoccer.com

Here are tackles per game per minute of opponent possession against goals scored. Tackles represents the strongest correlation of all the variables. In fact, tackles has a slightly stronger correlation to goals against than shots conceded. Here is a look at the shots conceded as a percent of opponent minute of possession.

sources: whoscored.com, mlssoccer.com

The two points to the far left represent the LA Galaxy and Sporting Kansas City. They appear adept at limiting shots on goal per minute of opposition possession. They also stand out when looking at offsides won.

Rather than show every graph, here is a table of the defensive statistics, their level of impact and the R squared of the impact in predicting goals against.

Statistic

Goals Avoided per Unit

R squared

Clearances

-0.041

27.1%

Interceptions

-0.036

15.1%

Tackles

-0.077

39.4%

Offsides Won

-0.113

16.0%

Blocks % of Shots

-0.017

0.3%

Offsides won is the most impactful of the statistics (has the greatest slope) but there is a weaker correlation than Tackles or Clearances--in other words, there are greater deviations from the trend line. It's interesting to see that Blocks as a percent of shots has almost no impact on goals allowed.

This is interesting, but what to make of it all? In an ideal world we could compile these statistics into a meaningful metric in order to compare players. The most obvious way to do that statistically would be to run a multivariate regression using all of the statistics.  The trouble with the result is that the statistics end up not being statistically significant predictors when mashed together. So developing a score from these metrics would be a bit of a fool's errand.

The other option would be to ignore the predictive strength of the variables and just use the goals avoided results as a scalar, multiply them by each player's statistics, add them up and compile a score. In this case the resulting score would be something we relate to as we could say that this player avoids x number of goals per game. However, this would give offsides won the statistic with the greatest importance despite the fact that the correlation is not strong.

To factor in the correlation we could leave the realm of sound statistical practice. We could multiply the goals avoided scalar by the R square. We could turn that into an index with the highest metric (tackles) equaling 1. If we did that here is the resulting table and values for each metric.

Statistic

Goals Avoided per Unit

R squared

GApU x R2

Index

Clearances

-0.041

27.1%

-0.011

0.37

Interceptions

-0.036

15.1%

-0.005

0.18

Tackles

-0.077

39.4%

-0.030

1.00

Offsides Won

-0.113

16.0%

-0.018

0.60

Blocks % of Shots

-0.017

0.3%

0.000

0.00

Tackles would be the most important statistic followed by offsides won and then clearances and interceptions. It turns out blocked shots have no material value in estimating goals against.

Before I use these numbers to reveal the top 10 MLS defenders, here are the caveats. Obviously this ranking is missing a few vital elements of defending in soccer. The first major omission is positioning. Often a defender being in the right position forces an offense to not make a pass that would increase their chance of scoring. There is no measurement for that but obviously a defender out of position is not a valuable defender. Clearances, interceptions, tackles and offsides won are clearing indicators that the player was probably in position to make the play and they indicate the player succeeding making the necessary play. But offensive attempts avoided are clearly missing.

The other major omission is the offensive play of the defender. A defender who defends well and represents an offensive threat is that much more valuable. But I'm not trying to solve for that here. I leave that for the subject of another post to integrate passing and offensive numbers to build a better score for defenders.

Here are the top 10 MLS defenders based on the score developed through the last week for players with a minimum of four appearances.

Rank

Name

Team

Tackles

Intercepts

Off Won

Clears

Defender Score

1

José Gonçalves

New England Rev.

1.6

2.4

2

11.2

7.376

2

Giancarlo Gonzalez

Columbus Crew

2.1

2.9

1.9

9.3

7.203

3

Norberto Paparatto

Portland Timbers

1.8

4.8

1.3

9.3

6.885

4

Carlos Bocanegra

CD Chivas USA

1.5

3.6

2.1

8.9

6.701

5

Andrew Farrell

New England Rev.

2.9

2.4

0.3

8.3

6.583

6

Jamison Olave

New York Red Bulls

1.9

3.1

1.7

6.7

5.957

7

Victor Bernardez

San Jose Quakes

1.5

2.8

0.7

9.5

5.939

8

Matt Hedges

FC Dallas

1.5

3.9

0.9

8.5

5.887

9

Eric Avila

CD Chivas USA

4

2.4

0.8

2.3

5.763

10

Chris Schuler

Real Salt Lake

1.8

2.8

0.5

8.3

5.675

I find it comforting that, for a new metric, Jose' Goncalves, MLS Defender of the Year in 2013, tops the list. There's a big drop between the top 2 defenders and Paparatto. There's also another cliff after Andrew Farrell. But hey, it's a start.

I hope this was an enlightening ride through the mechanics of defending from a soccer perspective. The next time you're watching a game, don't just focus on the breakdowns. Also look for what makes the defense successful.

MLS Week 8: Top 50 Shots

Okay, shots. We talk a lot about shots because, well, shots lead to goals. Obviously you can't have a goal without first attempting a shot. I know that was a deep thought, but just go with me here. We put a lot of emphasis on shots here and have dug into their expectation leading to goals. It's backed by the belief that shots are important statistics in correlation to team success. Now there are plenty of caveats to shots and we use them to influence our ideas of what is good or bad. Matthias has taken time to explain at least some of them.

So with all that said you can't read too much into all of these numbers. Take for instance the fact that Frederico Higuian creates 7.03 shots per 90 minutes. That's nearly a shot and a quarter more than Brad Davis at 5.79. Is Higuian a better shot creator because he creates one additional shot over the course of a single match? If that shot is from zone 4 or even 5, the value of that single shot becomes marginalized in that specific instance.

Despite all of those various acknowledgements of how this is marginally interesting, and yet mostly a useless exercise, I put together a follow-up of last week's top 50 individual shots creators in Major League Soccer. I decided it was best to cut up this data and present it via a tiered system to make it a bit more palatable and to highlight the players that have set themselves apart from their peers. Also, this allows me to be a bit creative in the tier process.

IBC Root Beer Tier - "The Best of the Best."

Player Club POS MINS G A SHTS Key Passes Sh-C Sh-C p90
1 Marco Di Vaio MTL F 326 1 1 24 4 29 8.01
2 Clint Dempsey SEA M 393 6 3 23 7 33 7.56
3 Federico Higuain CLB F 538 4 2 20 20 42 7.03
4 Robbie Keane LA F 450 4 1 22 12 35 7.00
5 Pedro Morales VAN M 472 1 2 19 15 36 6.86
6 Thierry Henry NY F 449 2 0 23 9 32 6.41

Oh, yeah... Marco Di Viao. He's also pretty good at this whole soccer thing. I guess we can all say that we could have guessed every singl--what the hell is Pedro Morales doing in there??? I guess that probably explains a lot about what's been happening in Vancouver. He's second overall in total Shots Created and he could very well be a shoo-in for MLS Newcomer of the Year.  He's like the offensive equivalent of what Jose Goncalves was last year to New England. I only have one question: who is this Camilo guy everyone was talking about?

Stewart's Root Beer Tier - "You don't have IBC? Who doesn't have IBC?"

Player Club POS MINS G A SHTS Key Passes Sh-C Sh-C p90
7 Landon Donovan LA M-F 450 0 2 13 14 29 5.80
8 Brad Davis HOU M 311 0 2 3 15 20 5.79
9 Graham Zusi KC F-M 450 1 3 9 16 28 5.60
10 Diego Valeri POR M 579 1 0 19 16 35 5.44
11 Dom Dwyer KC F 427 4 0 22 3 25 5.27
12 Leo Fernandes PHI F 436 2 1 13 11 25 5.16
13 Lloyd Sam NY M 621 1 3 12 20 35 5.07
14 Mike Magee CHI F 450 1 2 15 8 25 5.00
15 Giles Barnes HOU M 527 0 1 22 6 29 4.95
16 Justin Mapp MTL M 585 0 3 11 18 32 4.92
17 Michael Bradley TOR M 433 1 0 6 17 23 4.78
18 Mauro Diaz DAL M 604 2 3 13 16 32 4.77
19 Quincy Amarikwa CHI F 548 4 1 16 12 29 4.76
20 Felipe Martins MTL M 626 1 2 18 13 33 4.74
21 Gilberto TOR F 423 0 0 13 9 22 4.68
22 Cristian Maidana PHI M 425 0 2 11 9 22 4.66
23 Deshorn Brown COL F 448 1 0 19 4 23 4.62
24 Chris Wondolowski SJ F-M 450 3 0 20 3 23 4.60
25 Fabian Espindola DC F 531 2 2 11 14 27 4.58
26 Michel DAL M-D 401 3 2 11 7 20 4.49
27 Lamar Neagle SEA F 506 2 2 16 6 24 4.27
28 Obafemi Martins SEA F 620 2 4 13 12 29 4.21
29 Erick Torres CHV F 603 6 0 22 6 28 4.18
30 Javier Morales RSL M 527 0 2 7 15 24 4.10

Justin Mapp has the same amount of total Shots Created as Mauro Diaz in almost 20 minutes less field time. Try thinking about that next time you're frustrated by Mapp's hair line. Try.

Dom Dwyer does not go away. This guy could be someone that we may need to start legitimately talking about in the coming weeks. You should probably add Leo Fernandez and Lloyd Sam to that obnoxious hype list too.

Speaking of Sam, I added him to my MLS Fantasy Roster for tonight, hedging the bet that he finally scores a goal. At last look, the guy currently holds the highest xGoal predictor score without actually scoring a goal. If there was ever a guy that was "due" to score a goal, it's him and I'm virtually betting on it happening.

On the note of not scoring goals, "Hi, Landon Donovan". Who, in case you didn't notice, is still a good player even when not putting the ball in the back of the net. Because, you know, skillz.

 

Barqs Root Beer Tier - "Old Reliable"

Player Club POS MINS G A SHTS Key Passes Sh-C Sh-C p90
31 Dwayne De Rosario TOR M 254 0 0 10 1 11 3.90
32 Mauro Rosales CHV M 626 0 3 10 14 27 3.88
33 Kenny Miller VAN F 537 3 1 14 8 23 3.85
34 Bradley Wright-Phillips NY F 358 1 0 12 3 15 3.77
35 Darren Mattocks VAN F 580 2 3 13 8 24 3.72
36 Jack McInerney MTL F 436 2 1 13 4 18 3.72
37 Will Bruin HOU F 539 3 1 14 7 22 3.67
38 Baggio Husidic LA M 344 1 1 7 6 14 3.66
39 Bernardo Anor CLB M 497 2 0 16 4 20 3.62
40 Hector Jimenez CLB M 523 1 2 9 10 21 3.61
41 Teal Bunbury NE F 630 0 1 14 10 25 3.57
42 Diego Fagundez NE M-F 584 0 0 19 4 23 3.54
43 Sal Zizzo KC F 433 0 2 10 5 17 3.53
44 Kenny Cooper SEA F 358 2 1 12 1 14 3.52
45 Benny Feilhaber KC M 539 1 1 8 12 21 3.51
46 Juninho LA M 448 0 2 8 7 17 3.42
47 Andrew Wenger PHI F 528 2 0 14 6 20 3.41
48 Eric Alexander NY M 451 0 3 7 7 17 3.39
49 Alex CHI M 512 0 0 12 7 19 3.34
50 Saer Sene NE M 355 0 0 8 5 13 3.30

 

There are roughly 19 names here and I'm not going to go through them all. But key surprises are Jack McInerney, who everyone continues to think is "slumping" when he's not scoring goals. Baggio Husidic is making waves in that flashy new diamond attack in LA. Husidic is filling the hole that once upon a time existed out wide and makes the Robbie Rogers-trade look worse and worse, as he likely won't make it past a bench position upon return. Bernardo Anor has been doing a lot for Columbus out of the midfield but, perhaps, the bigger story than Anor--or even the LA trade for Rogers--is that fact that Gregg Berhalter pretty much stole Hector Jimenez who is looking brilliant in his new Crew colors.

Lastly, three other off season moves are having impacts with their new clubs.

  1. Teal Bunbury is finally being "the other guy" and taking shots in New England. Lord knows they need to start converting those opportunities.
  2. Sal Zizzo wasn't exactly a headline move this off-season, but since being let go by Portland this past off-season he's been a gold staple in the Sporting KC line-up.
  3. Kenny Cooper is having himself a quietly productive first season in the Emerald City. Yes, it's towards the bottom of the line-up and it doesn't really mean much of anything. But he's been reliable and fits in with Clint Dempsey and Oba Martins, playing the third/fourth fiddle and doing whatever needs to happen. Great role for him and he's doing it well.

There are a lot of things to take away from this. Like why didn't I just make two tiers: IBC Rootbeer and Barqs, which is basically all you're going to go with unless there is some local brewed Root beer that you want to try for funsies. Anyways, some information here. Not necessarily good information, but at this stage of analysis and data when it comes to MLS, and really soccer in general, what is "good" information?

Montreal and Philadelphia Swap Young Strikers

Okay, I'm sure by now that, given you follow our site, you've also probably been made aware of the fact that the Philadelphia Union (an underrated team in my opinion) traded their young 20-year old striker Jack McInerney to the Montreal Impact for their young 22-year old striker Andrew Wenger. The trade has a very Matt Garza for Delmon Young feel to it, leaving me with an odd taste in my mouth. Are the Montreal Impact selling low on Andrew Wenger? It's, at the very least, presumable that they know something that we don't about him and his nature. The question becomes, then, is that assessment accurate? Obviously the idea of a poacher is one that is met with a bit of contention,  in the sense of how do you measure being in the "right place at the right time" for an individual? However assessing the 86 shots taken by 'JackMac' from the 2013 season, we can know that no fewer than 57 of them came from inside the 18 yard box, courtesy of digging around on the MLS Chalkboards. It's obvious that he's a player that can get the ball in advantageous locations. Already on the season he's put together 12 shots and 11 of them have come inside the 18-yard box with 6 coming directly in front of goal. He's been appropriately tagged on twitter as a "fox in the box"---hold the sexual innuendos---and I think the term poacher probably comes naturally with that association. Unfortunately, that term may harbor and imply the idea that he's more lucky than good. I'm not sure I entirely buy that approach.

 

JmC-AWen

Meanwhile with everyone's attention directly focused on McInerney--audaciously stamped as 'The American Chicharito'--having already being called in the USMNT Camp for training during the Gold Cup, people are forgetting about Wenger and his potential that once made him a #1 overall MLS draft pick. Back in 2012, Wenger was painted as a potent and rising talent in MLS, named to MLSSoccer.com's 24 under 24 roster, coming in 7th overall. Just one year later McInerney jumped onto the list himself, rocketing to 4th overall, while Wenger was left off. The perpetual "what have you done for me lately?" seemed to come out in these rankings.

Wenger--despite all his talent--has run into a slew of various injury-related setbacks the last two seasons; it's so much failing to perform. The talent is still there, and I fully expect John Hackworth to tinker in an effort to get as much out of him as possible. The easy narrative here might just be the returning home to "revitalize his career" or something like that. Instead I think Philadelphia possibly got an undervalued piece in this move.

Looking at the last two years and a total of 31 shots Wenger has taken, 24 of those came from inside the 18-yard box, a higher percentage than that of JacMac. With that you can see above with xGpSH (expected goals per shot) that Wenger's average shot has been more likely to become a goal than that of his counterpart. Now, understand that this all comes with the requisite small sample sizes admission. Wenger has played less than half the amount of time as McInerney and has less than half the amount of shots. However, estimations based upon their current performances with creating shots has them near the same level as that of Eddie Johnson, Will Bruin and Chris Rolfe in years past.

Creating shots isn't everything. Creating shots in important positions is something. As we attempt to analyze the value of certain events on the pitch and how certain players are responsible for those events, we'll see some things and maybe understand how to assess performances. It's easy to overact to certain things that come with doing this type of analysis--- Such as McInerney, Wenger, Bruin and Rolfe all averaging about 4.0 shots created per game individually. That seems rather important, but there is additional data that is missing. How much was each shot that they created worth? What other attributes do they bring to the match? This is just an simple break down between two players and comparing how they've impacted their respective clubs.

Personally, looking at all of this data, I'm of the mindset that Montreal got the better player. However, it's extremely close and that isn't taking into account the rosters in which they are joining or how they might be utilized on the pitch with their new teams (4-3-3 concerns vs. 4-4-2 placement). I would say at this time the difference between the two is that one is younger and has more experience. That might be a bit simplistic approach but honestly both create shots the same way in the same space. McInerney does so at a higher rate but Wenger has made up for taking less shots with taking advantage of his more experienced partner, Marco Di Vaio, and feeding him opportunities.

This may be one of the more interesting trades in recent memory. I'm fascinated to watch what happens next and how each of these two players develop. Their career arcs will go a long way in providing the narrative for this trade and I'm not so certain that this is as one-sided as some people might think. Referencing baseball again, the Tampa Bay (then, Devil) Rays were largely regarded as having "sold low" on Delmon Young. We can now see, looking over the past decade,  that he never managed to put together all those tools that we once believed he had. The lesson being: don't be too quick to judge Philadelphia. This isn't necessarily going to be something as easily evaluated by just a single season, and time will reveal the significance of this day.

D.C. United: Shooters, Providers and What?

As you might have seen from our twitter stream, I kind of wrote an article on DC United last night. Then I scrapped it. Then, Alex Olshansky dropped this brilliant mess concerning Michael Bradley, and I was like "that's basically what I was doing... on a team level!" So it kind of nudged me to at least put forth an effort to finish it...only not really. What I did was basically compiled stats for four "core" attacking players on three different clubs. Two of those clubs (Sporting KC and Houston Dynamo) have shown consistent success the last two years, while D.C. United...well, you know, they have kind of stunk the place up.

The rest I submit to you without further inane commentary.

 

D.C. United

DC-Four

SH=shots, KP=Key Passes SH/KP = Shots/key passes ratio ShCPG =Shots created per 90 minutes played %ofTeam= the total percentage of the teams shots that the individual created

 

 

 

Houston Dynamo

Hou-Four

SH=shots, KP=Key Passes SH/KP = Shots/key passes ratio ShCPG =Shots created per 90 minutes played %ofTeam= the total percentage of the teams shots that the individual created

 

 

 

Sporting Kansas City

SportingKC-Four

SH=shots, KP=Key Passes SH/KP = Shots/key passes ratio ShCPG =Shots created per 90 minutes played %ofTeam= the total percentage of the teams shots that the individual created

Introducing Expected Goals 2.0 and its Byproducts

Many of the features listed below from our shot-by-shot data for 2013 and 2014 can be found above by hovering over the "Expected Goals 2.0" link. Last month, I wrote an article explaining our method for calculating Expected Goals 1.0, based only on the six shot locations. Now, we have updated our methods with the cool, new, sleek Expected Goals 2.0.

Recall that in calculating expected goals, the point is to use shot data to effectively suggest how many goals a team or player "should have scored." This gives us an idea of how typical teams and players finish, given certain types of opportunities, and then allows us to predict how they might do in the future. Using shot locations, if teams are getting a lot of shots from, say, zone 2 (the area around the penalty spot), then they should be scoring a lot of goals.

Expected Goals 2.0 for Teams

Now, in the 2.0 version, it's not only about shot location. It's also about whether or not shots are being taken with the head or the foot, and whether or not they come from corner kicks. Data from the 2013 season suggest that not only are header and corner kick shot totals predictive of themselves (stable metrics), but they also lead to lower finishing rates. Thus, teams that fare exceptionally well or poorly in these categories will now see changes in their Expected Goals metrics.

Example: In 2013, Portland took a low percentage of its total shots as headers (15.4%), as well as a low percentage of its total shots from corner kicks (12.3%). Conversely, it allowed higher percentages of those types of shots to its opponents (19.2% and 15.0%, respectively). Presumably, the Timbers' style of play encourages this behavior, and this is why the 2.0 version of Expected Goal Differential (xGD) liked the Timbers more so than the 1.0 version

We also calculate Expected Goals 2.0 contextually--specifically during times periods of an even score (even gamestate)--for your loin-tickling pleasure.

Expected Goals 2.0 for Players

Another addition from the new data we have is that we can assess players' finishing ability while controlling for the various types of shots. Players' goal totals can be compared to their Expected Goals totals in an attempt to quantify their finishing ability. Finishing is still a controversial topic, but it's this type of data that will help us to separate out good and bad finishers, if those distinctions even exist. Even if finishing is not a repeatable skill, players with consistently high Expected Goals totals may be seen as players that get themselves into dangerous positions on the pitch--perhaps a skill in its own right.

The other primary player influencing any shot is the main guy trying to stop it, the goalkeeper. This data will someday soon be used to assess goalkeepers' saving abilities, based on the types of shot taken (location, run of play, body part), how well the shot was placed in the goal mouth, and whether the keeper gave up a dangerous rebound. Thus for keepers we will have goals allowed versus expected goals allowed.

Win Expectancy

Win Expectancy is something that exists for both Major League Baseball and the National Football League, and we are now introducing it here for Major League Soccer. When the away team takes the lead in the first 15 minutes, what does that mean for their chances of winning? These are the questions that can be answered by looking at past games in which a similar scenario unfolded. We will keep Win Expectancy charts updated based on 2013 and 2014 data.

MVP Discussion: Soccer shares baseball's issues

In the wake of Major League Baseball awarding its MVP to Miguel Cabrera, debates over what "valuable" means have once again flared up. Though soccer and baseball are two incredibly different sports, I think we can apply some of the same logic to both MVP discussions. Major League Soccer has about two weeks remaining before its MVP award is handed out, and we will no doubt encounter many of the same controversies in the soccer blogosphere that appear in baseball every season. The MVP controversy usually begins with what "valuable" means. I think there's little doubt in most people's minds that "valuable" and "skilled" are correlated. The main controversy is how correlated. To some, asking who was the best player in Major League Soccer in 2013 would be equivalent to asking who was the most valuable to his team. To others, there would be some key distinctions, the most common of which is that MVPs must come from teams that reach the post season.

In retort to that thinking, some very astute commenters in a Fangraphs.com forum offered up these nuggets. Hendu for Kutch made the analogy:

"We each want to buy something that costs $1. I’ve got a quarter, 8 nickels, and 10 pennies. My 'team' of coins is worth 75 cents and falls short of being able to buy the item. You have one dime and 18 nickels. Your 'team' is worth $1, and you successfully buy the item. Is your dime more valuable than my quarter simply because it led to a successful item purchase?"

Mike Trout = quarter and Miguel Cabrera = dime, for those of you not so into baseball, and the question is a good one. Few would argue that the dime is more valuable than the quarter just because it found itself in a position to help buy that scrumptious Twix.

In reply to someone arguing that the quarter had no value because it didn't lead to the purchase of a desired item, BIP and ndavis910 then chimed in:

"Except not everything costs $1, and at any rate, you would always choose the quarter over the dime when accumulating money for a purchase."

"Especially when you don’t know the cost of the items until you get to the store. In baseball, a team cannot be sure how many wins it will take to reach the playoffs until the last day of the season. In your example, the quarter is the most valuable piece regardless of whether or not the item cost $1 or $0.75."

When thinking about attributing value to players like Marco Di Vaio, Mike Magee, Camilo Sanvezzo, Robbie Keane and company, why should it matter where their teams finished? If one believes that Magee, for instance, is the best player in MLS, then does it matter if he took his team from 39 points to 49, versus from 40 points to 50? Either way, it's still ten points of value in the standings. When Magee was traded to Chicago, neither Chicago nor Magee knew that the Fire was going to need 50 points to make the playoffs. The fact that they got just 49 points shouldn't negate any of Magee's value.

If you say that it matters because MLS clubs get real value from extra playoff games, then think about this. Playoff cutoff lines are quite arbitrary. If MLS allowed only the top two teams in from each conference---not completely unreasonable for a league of just 19 teams---then none of the players mentioned above would be considered under this playoffs requirement. Playoffs represent an arbitrary bar that the players competing for the award don't get to set, and while reaching the playoffs does bring the team measurable revenue and value, basing an award on something outside an individual's control would, in my opinion, strip the award of its intended meaning and purpose.

Now let's anticipate the logical counterargument---that players pick up their games in playoff races and play well when it matters most.

For a moment, let's ignore the fact that little evidence has ever been found in professional sports that players can turn it on and turn it off as needed. This past season, Magee scored seven goals in Chicago's final nine games, a stretch in which the team averaged 1.56 points per match. That represents a pace that would have gotten the Fire into the playoffs if maintained for the entire season. Di Vaio scored five goals in his last 10 games---I even included that tenth-to-last game in which he scored two goals---in a stretch where Montreal tallied just 0.7 points per match, limping into the playoffs on a tie-breaker with Chicago. Just because one team makes the playoffs doesn't mean its best player was at his peak when it mattered. Goals are, admittedly, a narrow-minded way to measure a striker's value, but I think the point is still valid.

For me, the Magee-Di Vaio example above may have been no more than an exercise in confirmation bias. I chose to see what I already believed. However, the logic behind the belief that team standings shouldn't matter to players' MVP merits is still good stuff, and transcends any biased example I can come up with.

If we're ready to agree that that the MVP award should essentially be given to the best overall player, then we still have a tall task ahead of us. How do we measure skill on the soccer field? That is the 64,000-dollar question, and one we hope to help tackle here at ASA some day. But perhaps it's not so crazy to think that a guy like Federico Higuain is deserving of the MVP award. If you scoff at that notion, you likely do so because you've been trained to think about MVP awards in a certain way.

We're all about re-thinking things around here.

ASA Podcast XXIX: Of flip phones, semifinals, USMNT, pass completions, and burrito folding.

This week we talked about how cool and hip we are, followed by a discussion of the first legs of the MLS Cup semifinals. We continued with potential changes to MLS' CONCACAF Champions League births, Klinsmann's 23 man roster for the upcoming friendlies versus Scotland and Austria, and the top 50 players in MLS by pass completion percentage. We concluded with a discussion of burritos and proper burrito folding practices. [audio http://americansocceranalysis.files.wordpress.com/2013/11/episode-xxix.mp3]