Sometimes the simplest answer is the best one.
As much as we love his escapability and pump-faking fools, Brock is at his best passing when he is clean and clear. Most of his picks (especially the WTF ones) are when he is running around being chased and trying to do too much. Like every other QB ever.
Agreed. His best throws, especially long throws are first/second read, clean pocket step-into-them kind of throws. These are pretty much the only deep balls that are on the money consistently. When it's a scramble drill deep throw, a throw where the pocket isn't clean, or even a throw where the timing is off just a bit, I think we all hold our breath.
His best games, I would argue are the games where he has multiple running plays or run/pass option keepers. I said this prior to the bowl game as and observation from the OU game (and the rest of his career). I think ever since his freshman year the coaching staff has been working on him becoming an elite throwing QB, trying to emphasize pocket passing. It seems to me (casually observing) that when he focuses too much on being that pocket passer (and not just being himself) that those games often are not his best.
We all know he's a gamer. He's going to fight to the limit (and beyond) to make a positive play. In situations where he tries to make a low percentage throw it's usually not pretty. If he uses his legs to attempt to make that low percentage play, often good things happen.