1) You (we) STILL don't know whether the problem is coaching or talent. I think improving talent will be more effective than improving coaching...but I don't know either.
2) You (we) DO NOT know what it takes, or what Fitz needs to do, to win Big Ten championships aside from recruit better. I don't know either.
3) Our main problem right now is defense in the sense that it was the primary reason why we lost (more break downs and botched plays on defense than offense), yet most here are complaining about offensive coaches.
Sorry if you've heard this before.
We don't know the problem? Currently it's OL, WR, DE. How many years running has it been OL and WR? I would say this is year 3 for WR and year 4 for OL (at least since Pat Ward graduated after 2012).
We have struggled landing our top OL and WR targets for pretty much years. So we know recruiting has not been good enough. Then we also know the coaching isn't good enough to compensate. Maybe the coaching would be adequate with quality talent but we know it's not good enough with the recruits that we signed.
For DE, we anticipated some drop off after Lowry and Gibson by signing Goens and Gaziano, but they're young. That means a year of holding the fort with two situational pass rushers trying to play three downs. We might have reached at the end of a class for Washington after a decommit. We converted a lanky LB, Odenigbo, into a DE by having him gain a billion pounds.
You can add QB to the list. We started a RS frosh because the senior was not good enough and the next guy was, as it turned out, badly injured. The coaching was not good enough to have a RS frosh play well.
So we know it is recruiting, as you said, but yeah, we know something about the coaching. We know it might be okay with quality talent but it is not good enough when we miss on our top recruiting targets. Jerry Brown wasn't good enough before we gave him Harris, Van Hoose, Henry, Campbell, etc.
If we have to stack the deck so much at DB to succeed, so much that we struggle at WR, what does it suggest about the coaches? Same with DL/OL.
Aren't we at a point at which we are really confident only about our LB coach? We have had some mediocre talent and great talent but when was the last time our LBs sucked?