Who do you know that's going to turn down an additional six or seven figures to do the same job somewhere else?
Only IF the NCAA has the wisdom and foresight to navigate those legal waters.
If you believe they're capable you have infinitely more trust in the NCAA than I do.
Nothing would stop them from moving from one job to the next, just like you or I can. But as I noted, there are ways to incentivize/disincentivize employees from moving to new job. I can take a job in the middle of my contract with my employer, but I have to pay them back thousands of dollars if I want to do that.
The NCAA is a bunch of morons, but if the players become professional athletes or employees of the university then I'm not sure the NCAA would any longer have anything to do with (or any say over) the teams and players that choose to go the professional route.
The NCAA doesn't regulate the employees of the member schools does it? They don't get involved in the hiring, firing and other disputes between a professor or a custodian and their employer at the University of Alabama, so why would they have any say over a football player who is an employee of the university? And they'd have even less interest were the teams separate entities from the schools and the schools simply had some kind of financial arrangement with the teams akin to what the schools have with any other commercial entity the university does business with.
To me, the NCAA has nothing to do with this at that point.
The NCAA would cease to exist in any way in a new world of professional college football, at least in terms of governance of football.