DonM Nagy made the big mistake in play calling, the 2nd season he was there; he didn't do it. He called the plays that 1st season. And they had a great season. imo, the mistake this year, so far, was benching Mitch. Yes, he was having a few problems, but were they really his fault(see 1st sentence), this season and last? Also, when you take away a big plus from the offense, Trubisky's running ability, you have weakened said offense & made it much easier for all defenses. Not to mention they really do need to quit wearing out their chosen ground game routes, same old, same old, every game, all game. If a team cannot have a 100 yd. rusher, since forever, you'll need a 300 yd. passer. And they will not win as much, or easily, with neither.