most athletic departments lose money.. I would have to research but feel confident Vanderbilt loses money every year. The non P5 conference schools mostly lose money. Revenue sharing happens at the conference level because conferences establish the TV contracts, not the NCAA.
Don't see Vanderbilt getting run out of SEC.
My thoughts years ago was 4 divisions with 5 schools each to make up 20 team conferences. My thoughts then were Big 10 (14 schools), ACC (14 schools), PAC 10 (12 schools) and SEC (14 schools) would be the 4 conferences.
When you look at the Big 12 (10 schools) and the AAC conference (10 schools) there are 20 that could be added to round out the big 4. You add schools like Boise St, BYU, Notre Dame, Fresno St, San Diego St.. etc.. you can get to 20...
But, you don't have to do 20. 16 could work at 4 divisions.
My thoughts have also been, you eliminate the OOC games. Playing an SEC schedule is all you want and would not want big time schools (Clemson, Ohio St, etc) on your schedule. With a 16 team playoff, you might go back to 10 conference games like the SEC did last year. Could still do 12 but might not.
If Texas and Oklahoma end up here in the next few weeks, then look for the Big 12 schools to quickly be grabbed by Pac 12 and Big 10. West Virginia might go ACC along with Notre Dame.
Just some rambling thoughts.