Honestly, After what I watched in that bowl game: crap effort and sloppy technique (tackling, pursuit / gap filling, blocking), it doesn’t matter what scheme, the culture has to change.
The leadership and pride in performance has been porous at too many points in the last 2 years for me to think a simple scheme change or key player will make the difference. In terms of the players, There’s been something off since Justin Thomas graduated. I think we’ve seen weaker senior leadership and a lack of quality control. Same guys repeatedly making the same mistakes, and a lack of depth to hold them accountable
Collins is for sure the right guy to build a better culture. But, I could see this taking a year or two because of who is currently on the roster.