"You show me the man and I'll show you the crime" is not how it works.
You'll recall Donde Plowman announcing the day Pruitt was fired that they fired him for cause. You don't get to fire someone and then go perusing the NCAA bylaws later on looking for cause. As someone said, no judge would stand for that. "For cause" implies it was the reason they were fired. Kelly was clearly fired for performance. They made that abundantly clear. No take backs
All that would happen is they would end up owing the original amount, while also dealing with the NCAA investigation they brought on themselves.