So, you're talking about moving teams in and out of P-5 leagues? Leaving aside how absurd that sounds to me, let's take a look at some of the roadblocks.
1. Do you really think any team/league/college president would agree to this? Would FSU/Alabama/etc. agree to this, knowing they are one bad season away from being moved to the Patriot league?
2. How do you get around current GOR's in the P-5 conferences? If your answer is 'the leagues agree to restructure them', see roadblock #1.
3.College football schedules are set years in advance (leaving out SU as the outlier
). Are you going to tell Florida that instead of playing Georgia they are going to play UConn? If your answer is 'yes', see roadblock #1.
These are just a few that came to mind instantly. It seems to me it always comes down to #1. There is literally no reason for the NCAA to do this.