Monte up and "Resigned" with a cupboard chocked full of AA recruits at every single position, a Defensive guru of the NFL got clowned all season because he was too stubborn to stray from his "The system is proven, it works."
The landscape of CFB is fluid and drastically different from that of the NFL. If you don't bend and adapt to your environment when it's proven that the current system needs to be tweaked, then the problem is you, doesn't take a piano builder to figure that out. Once an OC figures out how to push your shit in, changes need to be made obviously. Or not, for a Defensive Genius.