Lack of mental toughness with his teams which goes to not being a disciplinarian. This all manifested itself in losing close games with poor execution in the clutch.1. He didn't fully grasp the importance of LOS dominance.
2. He wasn't an Xs & Os scheming/gaming guy.
3. He threw darts when hiring OCs.
4. Large inconguence between QB styles and offensive schemes.
5. Pensonality-wise, he was salesman and was defensive.
6. For being an explosive play guy, why ignore the WR room?
7. Not sure about his relationship with the troops or what style motivated them, but the post-tackle dancing and the personal fouls indicated to me that he was not a disciplinarian.