What should end up happening is a P2 level tier with two leagues, 20-24 teams each. 4 teams from each league comprise the playoff group of 8 teams. This requires SEC and B1G expansion. This means Miami must join one of the other in order to participate.
The remnants the ACC and Big 12 expand with select G5 teams into a second level, with their own playoffs and championship game. Miami can join one of the two super conferences or settle for this level of competition.
Whomever is left out of the above two tiers is not part of the real conversation anyway.
The key to all of this is creating a level playing field in each tier. At least as level as possible. I believe NIL and revenue sharing helped with this implementation, but we need to be wary of those who want to rig the game.
It’s true the four CFP got it right 95% of the time, but this was also an era when certain conferences and teams were allowed to cheat with impunity, thereby rigging the game. Funny how many SEC teams are overrated at the beginning of the season, and beating them when ranked higher than they should be improves the winning team’s stock in the rankings.