Guy's gonna be a hell of a pitcher if he can keep his weight under control, but I can't see him being too valuable this year. It's gonna take him a couple starts to get acclimated to the majors like in AAA and AA. He's also gonna be on a strict innings limit. He's already pitched over 50 innings more than his career high, and there were multiple starts in both AA and AAA where they pulled him before he even reached the five inning mark with a low pitch count.
Then again, who knows, maybe they'll let him go out there and throw seven innings.