I actually think the Sheridan experience will be about as fun as the Wommack experience. Nepotism promotions are what got Bobby Petrino fired at Louisville. And he’s a way better HC than Tom Allen is.
It is about trust. If you can get someone great, even a one year guy like DeBoer you take it. Especially if your guys need more mentoring (potential plan for a guy like Sheridan all along). BUT, if you look across the landscape of coordinators or potential coordinators and you don't see what you want THEN you look to the coaches you have groomed and spend countless hours with. That trust can push your guy ahead of other options.