There really is no legal way to rein in NIL after the United State Supreme Court has spoken.
The only available mechanism to somewhat rein in what is out there now would be for the NCAA to go back to requiring that a player sit out a year upon transfer. I doubt seriously that the P5 will allow it to go back to that at this juncture.
So, like I said, it is what it is and we will have to learn to live with it.
Just going out there and getting better pitching or a better QB or better linemen will just not be easy other than to recruit freshmen talent that has not been discovered and develop them until their big NIL deal comes around. To compete there, there will need to be a lot more investment here than is available at the moment.
It is what it is.