New numbers are supposed to reveal new understandings of teams and players - to find a better way to quantify the things we see on the field into useful, descriptive data that truly reflects a player’s genuine contribution to a team’s performance.

You’re at this website probably because you distrust the traditional numbers that a television broadcast might use to describe a player’s performance. ‘Assists’ are valuable, but less so if a player is a tremendous passer with lousy finishers on the end of his passes. ‘Pass completion percentage’ isn’t particularly valuable if a player makes lots of safe lateral and backwards passes.