Here are my main issues, in order:
1) Coaches way too tentatively. His teams show no urgency or imagination until the game is out of reach. We did not throw into the wind until the Pats (the visiting team) showed us (on our home field) that it could be done. Pathetic!
2) Related point - his lack of emotion transfers to the players. Players take on the personality of their coach and in DJ's case, his passive nature translates onto the field. That's a recipe for mediocrity.
3) Clock management. Enough said.
4) Allows players to get too comfortable. Why is it GOOD for a collection of 7-9 players to be comfortable with their coach, unless you want more of the same?