Don't think this can't happen because it's happened (on a smaller scale) with a certain DC and we're dealing with a school with billionaire boosters who would spare no expense to have a successful football program.
USC fires Lincoln Riley and makes an enormous offer to one of the current hottest coaches in the country: Bob Chesney.
Although Riley's buyout is sizable, if Chesney should choose to leave UCLA the buyout is only $5 million after December 21. Loyalty only goes so far when he could almost double his salary, have substantial resources and stay in L.A.
So if you're rooting for Riley to fail, be careful what you wish for.