I dont see him having any interest Auburn or Nebraska for that matter.
I think he's actually a good CEO type coach - he can recruit and doesn't seem to be the type of HC that insists on being seen as the smartest guy in the room. If he had an offensive system that wasn't working, I don't think Deion would hesitate to change to a totally different scheme. That would be a refreshing change from many coaches who shall remain unnamed.
The one thing I would question is whether he'd be willing to put in the 16-18 hr days that most P5 coaches do. You don't see a lot of former NFL players retiring and becoming college HCs. It is an incredible amount of work. He doesn't need the money, he just seems to really enjoy the coaching aspect. In a way it kinda reminds of Bud Foster. A long time ago I used to work with one of Foster's former college team mates. They were still good friends. I asked if Foster would ever consider a HC job. He said never in a million years. Foster was the perfectly content with his life. He made more than enough money to support his family, loved the area where he lived, and didn't want the stress of being a HC.