Despite the lack of real answers given by Quinn in press conferences (understandable and all coaches do it) this defense has to be really eating at DQ. The stats SP provided above are not proprietary information to just members of this board. DQ is fully aware of how bad this D is, maybe he feels its personnel, maybe coaching / scheme, combination of all of it but DQ is fully aware of its shortcomings. As someone posted above DQ is not going to get rid of Witt unless it becomes really dire, at least not until the offseason if then. Conversations within the walls of that building must be getting tense at this point. I think DQ as you pointed out will press for some sort of personnel tweaks. Might be at LB rotation.
I mean, in his post-game presser all Dan Quinn wanted to talk about was lack of turnovers and the fact he thought there were opportunities for turnovers. He seemed more bothered by the way the defense didn't cause turnovers than he did the offense turning the ball over.
He's clearly upset about it.
It does absolutely no good to throw your DC or defensive coaching staff under the bus though. So he's not going to complain about it too much.
That said, and as
skinsinparadise has pointed out, Whitt seems happy to take credit when things are going well and then push it on players when they are not. So even with the team, while I don't think Quinn wants to really get into the finger pointing, there is a little of it going on already.
I think it's still too early to make a change at DC. And as I posted somewhere above, I don't want Quinn taking over those duties. It didn't work for him in Atlanta, and there's no reason to think it would work for him here. The one thing I do believe is Quinn is not going to let any coach get him fired. If he feels that Whitt is not cutting it and they have to try something different, I think he will. It might be in the off-season. Quinn knows this is his last HC shot, given people rarely get 3 opportunities, and he's not the profile of the hot young offensive wonderkind. So, unlike Ron, I think Quinn is going to be much more pragmatic and less emotional down the road.
The question more is, what can they do right now. Because right now things aren't working really well.