It sounds like you are advocating the Bo Schembechler model, or more recent examples, Alvarez at Wisonsin or Belotti at Oregon. Of course, all of these guys had experience at their own university and made the transition to AD. CU doesn't have that luxury of course.
It seems like a lot of different paths can lead to success. Some guys are former businessmen like David Brandon at Michigan, some have climbed the ladder by job hopping like the Baylor AD, and others have been promoted into the position like the Florida AD, who literally started at the university as a ticket intern 40 years ago and worked his way up to AD.
Overall, it's hard to say there is any formula for a good hire. In the end, it's more about energizing the whole community around a vision. It goes without saying that's been lacking at CU. I don't blame Bohn for all the problems, but he wasn't a catalyst for change either.