He's perfectly fine as a #5 starter. We need bullpen help and don't let these bullpen guys fool you with the last couple of good weeks. They're pretty inconsistent so looking good sometimes is just part of being inconsistent.
The divisions are there to keep fan interest in multiple races. Winning a division means making a playoff. But too many fans call it a pennant race and it's only winning the pennant after winning the ALCS. (Or NLCS). I would much rather play a balanced schedule than to play our boring division teams 15 times each, or however many they play.