It's true the Bears ran more under Gase compared to Trestman but not when you compare it to the offense under Mike Tice. Cutler was more efficient under Gase compared to about the same number of runs under Tice. Cutlers QB rating improved by 12 points from Tice to Gase and Cutler actually threw more under Gase (38 more times to be exact). He had 2 more TD's and 3 fewer picks. We are talking about a small sample period of 1 year with Gase/Cutler and there were several injuries on the offense that surely kept Cutler from playing even better.
Matt Forte missed 3.5 games, Cutler missed 1 game, Alshon Jeffrey missed 8.5, Martellus Bennett missed 5, Eddie Royal missed 6, Kevin White missed 16, Bushrod only started 4 games. At one point Cutler's starting receivers were Marc Mariani and Marques Wilson, yet he still managed to improve.
Kraig Urbik at his worst, was twice the guard of Dallas Thomas. Unless DT has a severe turnaround, he may not even be on the team. You would think the team would lean towards keeping younger players like Turner and Douglas over Thomas. There is still hope for those younger guys and a bit less for Thomas at this point. That doesn't even factor in Bushrod who was a Pro Bowl left tackle. I'm not too worried about a transition to guard for an athletic player like that.
The part of the list I have to disagree with is line 5. I think Williams, Suh and Wake are going to be fine but there are a few issues with that. Wake will have his snaps reduced and be a pass rush specialist. Who is going to play the run at SDE and who is going to stop the run at DT besides Suh?
Our LB's should be better than last year but that may not make up for the deficiency at DT. There are still questions about Phillips ability and Chris Jones health. I think we've all seen enough from Mitchell to know what he brings....which is not much. How he was not upgraded is beyond me.
We also have absolutely no depth on defense. If a starting safety, corner, DT or DE get hurt, we are in BIG trouble.