OC is the hardest job in football. Doege did a great job. Braxton was terrific but Doege put him in position to succeed more than he had anywhere else. Give Huff credit for hiring him. A dynamic offense isn't just trick plays, it's flexible design using different formations, motions, route combos and play calling that keep the defense off balance and your offense unpredictable. That's why he is at Arizona. And let's face it, our defense wasn't great most of year as we were outscoring most people despite some great indy talent at all levels.
I've said a bunch of times to look at the champs most years in league we were in and look who is running the offense (either HC or OC). Jeff Brohm, Lane Kiffin, Cignetti, Appy state before the most recent guy. The UAb coach was a bit of an exception. Furthermore look back at Boise under Chris Peterson...one of best offense minds to ever coach college football. I wouldn't say good DC are a dime a dozen, but sure much easier to find than a verg good OC. But even a great OC can't make you a winner without an above average QB. The Cato years had more to do with great talent than OC but that was the exception. And we only won one title with him. Until Doege, we hadn't had an OC take a better job since probably Marty Galbreath.
Defensively, I pray that Gibson keeps Huff's emphasis on attacking/playing fb in secondary vs playing just the man and running into them for PI calls. That was a huge thing IMO. On paper it looks like new OC might be a good hire.