iayork broke down Pomeranz's repertoire at the .com today.
In previous seasons, Pomeranz has almost entirely relied on just two pitches – four-seam fastball (“FF”, in the charts here) and curve (“CU”) – occasionally mixing in a changeup when starting games, but not in relief. It’s difficult for a starter to be effective with just two-and-a-bit pitches, and in 2016 Pomeranz has added a third pitch, a cutter, to his toolbox.