There are a multitude of tactical questions facing each remaining team in the MLS Cup Playoffs. Can New York's retooled wing-backs be relied on to defend capably? Can the Crew maintain a consistent attack with Federico Higuain's inconsistent performances? Can anything be done to stop Dallas' attack through Mauro Diaz and Fabian Castillo? And how will suspensions affect Portland's midfield? I'll examine each of these questions and provide a tactical preview of of the Conference Finals below.