Yeah, I've been thinking that for a while now too. The other thing besides how he looks is he seems more annoyed with certain interview questions in the post-game. Kind of started when all everyone wanted to ask about was Donovan once Donovan started putting up big numbers. But lately he seems to get annoyed by lots of things. It's a big contrast from how he used to seem to love teaching and talking about their strategy and development to anyone and everyone. Admittedly our media does ask him some dumb questions with regularity.
Anyway, it's quite possible that Deathcember and the injuries took quite a toll on him when expectations were high and performance was not. Hopefully that's all it is.