I view the situation with a little bit different perspective. I think Trestman's last year he had lost the team early in the season. I also think that Tucker wasn't the right guy for the job. He lacked vision and creativity. I don't think it is a Cutler vs. McCown situation because McCown is not nearly as good of a QB. The defense was so bad last year that the offense was constantly playing catch up. Cutler has a propensity to force the ball. The fact that the Bears were forced into passing situations just illuminated Cutler's weaknesses. Chicken and the egg-which came first the bad defense or Cutler's play putting too much pressure on the defense? I'm not sure either would have made a lot of difference in the win-loss column.
Now, add to that the poor drafting, injuries and a general sense of malaise and you have one shitty season. And, I think at the end Cutler didn't trust Trestman and Trestman didn't trust Cutler. It was a all around shit-show. We can sit around for the rest of the off-season and dissect last year. Bad front office decisions, bad coaching, bad QBing, bad defense, bad QB play, poor play calling, we can go on and on and on and on.