Is Curt Young a better pitching coach than Mickey Callaway? Is Callaway a better pitching coach than Mike Butcher or Jim Hickey? That a pitcher goes somewhere and does better tha he did elsewhere a credit to the coach? So many different factors, age, experience, heath go into a numbers for pitchers. The Twins pitching staff has over time under Anderson has a fip, xfip and SIERRA lower than the team ERA under Anderson. They have a WPA of 28. As a whole then, the Twins staff pitches better than what is expected of their talent. Not by much. So not great, but not bad either.