Originally Posted by Frater Perdurabo
No one said Don Cooper is "infallible."
However, there is a long history of veteran pitchers and hitters going from the AL to the NL and realizing significant improvement. Facing pitchers instead of designated hitters tends to help pitchers perform better, and getting pinch hit or double-switched out of a game in the later innings while your own team is hitting often forestalls a late-inning meltdown.
That's not what Liriano is. The Pirates adjusted a mechanical hitch that caused his control to suffer. He doesn't walk nearly as many batters, and doesn't fall behind all the time. Don't be a Coopologist!