Ken Giles, obviously. But the Phillies’ bullpen overall, even excluding Giles, has been much improved following a rough start to the season. There has been a lot of turnover, as Jeff Manship, B.J. Rosenberg, and Phillippe Aumont have been eschewed. Meanwhile, Justin De Fratus has come on strong and Jake Diekman has been on the up-and-up while Giles has steadily been among the most dominating relievers in baseball.
On a month-by-month basis, here’s what the changes have looked like with the bullpen as a whole: