The Yankees bullpen, a distinct strength during the regular season, hasn’t been too sharp this postseason. Although he’s only given up one run, Joba Chamberlain has looked particularly shaky. In 3 1/3 innings over 7 postseason appearances, Joba has allowed 7 hits (that’s a .438 batting average and a .750 slugging percentage for the opposition). Although he does have 3 strikeouts, he doesn’t seem to have much command of his slider. Take a look at his strikezone plot from this postseason (the slider is highlighted in green):
Of the 24 sliders he’s thrown, only four have been low and out of the strikezone. That's not exactly a recipe for success.