I'll go ahead and say that our slow/unimpressive outside play is a much worse factor than the mental aspect. Specifically, Merideth, Ankrah, Fisher, & Whaley. Very little speed, very little play making ability.
The slow playing is in part due to trying to be perfect or thinking too much. Offenses can only line up in so many different formations they need to be able to get a presnap read faster and get lined up.
After the play starts it should all be reacting. But I think he has them thinking too much after the play starts.
I think the biggest problem is they're anticipating, not reacting. Guys aren't reading their keys and biting on play fakes leaving somebody else out to dry. Every big play against OSU was basically a safety, linebacker, or an end out of position because he wasn't playing his assignment (at least as far as I could tell). I think we need to get back to the fundamentals, OSU didn't have any fancy blocking schemes. Every play could have been diagnosed as a run or pass from the snap and then shut down with minimal gain if guys stayed home and played their assignment.
It would have been perfectly fine to make OSU drive the field for every TD, because then they would be chewing up the clock in a close game. And with our offense I'm confident we have better than a 50/50 chance to win close games when the other team isn't putting up 35+.