I'm a big Jeff Grimes fan and have posted that in several threads thru the years. When he was here I said he'd be a great head coach. He has the IT FACTOR!
He is a non-mormon who's been to BYU a few times, and he built that offense at BYU and as Buffnik stated, he built it around a style that takes advantage tough linemen. Trench warfare. We have the OL types in Colorado that if we can get better, we can get some of them to stay home and that should be the basis of this program (not unlike Iowa State, Iowa, Wiscy, Minnesota etc). His offense is not trendy, trends tend to fade in a few years as DCs figure out how to match them. I absolutely love what Grimes did at BYU.
Given he's a non-mormon and he's been willing to go across the country and at BYU twice, I absolutely think he'd come back to Boulder to be a Head Coach and he could build a powerhouse here, piece by piece, and it would be a process. No overnight recruiting miracles.
He's never been a head coach. He will leave his current job for a P5 HC job, maybe even a G5 HC job. Although if Aranda leaves, he'd be likely his successor. His wife is from Texas (as is Jeff) so there's a draw perhaps to stay in Texas.
I'd expect he'd bring a key Defensive guy who would be a Pacific Islander and heavily recruit that community that he knows so well from his two trips thru Provo. That's something that Utah and BYU tap big time. I have always thought CU hasn't worked that angle nearly hard enough. Recruit Texas and California/Arizona/Las Vegas and that's it. (And Pacific Islanders wherever they are).
Rick George could have hired him two years ago, but he went for a former Buff with a home in Boulder.