Bullpen management is the most difficult part of a modern manager’s job, and that difficulty is only amplified when you manage the New York Yankees, a club with one of the deepest and most dangerous bullpens in baseball history. Every guy “needs work,” but how do you get enough work around for seven guys that would all be closers on a different team?
More to the point, do all guys “need work”? It is often speculated that Aroldis Chapman in particular suffers from rust when he goes three or four or more days without being used in a game.