Interesting arms are always fun to see the Phillies grab. There seems to be a type that they have: throws hard, has an interesting secondary pitch and has at least some idea of where the strike zone is. Caleb Cotham and friends have been pretty good at developing at least some pitchers to populate the bottom of the roster, enough that they can cycle out pitchers to Lehigh Valley and back without missing much of a beat.
Yunior Marte was one of those guys. Good, lively fastball, good enough slider, but he was missing that third part that is essential to being a major league pitcher.