 Hamels is known throughout baseball for possessing one of the better changeups in the game . In 2012 , Fangraphs ranked Hamels as having the fourth best changeup in the game trailing only Jason Vargas , Tommy Milone , and Félix Hernández . The Hardball Times called his changeup a " killer " pitch to right @-@ handed hitters , noting that while it is also effective against left @-@ handed hitters , when they put it in play , they generally have success . Rangers pitching coach Mike Maddux said of Hamels , 
