If the NCAA HAD ANY BALLS and any actual control over ANYTHING- what they need to do is make every team JOIN A CONFERENCE- OK, Notre Dame, you wan to be independent? Have fun with that, you are no longer eligible for the playoffs or bowl games. Watch how fast they fall in line!
Every conference has a championship game= ROUND ONE OF THE PLAYOFFS! That was the intent of the NCAA for decades, but so many conferences keep dicking around with it, dropping their CGs... oh, you don't want to do a CG? Have fun with that, you are no longer legible to participate in the playoffs or bowl games.
The top 4 teams after the CGs get into the playoffs- keep the playoff the same.
further changes/ more details?
Continue massive overhaul of conferences.
Fewer but Bigger conferences
we know the term "Power 5" (or, power FOUR maybe?)? Make it mean something- 4 or 5 big conferences, the teams who do not qualify to be in one? Should be a different level of football. Something between FBS and FCS. They already are. Honestly... Did you REALLY think Houston... Or Memphis were getting into the playoffs? At any point? What about Boise? Seemed like they went undefeated for a DECADE and never made a legit push for the CG... 95% of the teams NOT in a power 5 conf do not deserve a shot to play in the playoff. The 5% that do?... Let them join a power 5!
If it is 4 conferences? Conference championships- round 1, champs go on to the same playoff we have.
5 conf? Conference championships- round 1, champs and 1 "wild card"/ at large get in (maybe the "wild card"= best from the group of D 1 schools that was left out of the power 5? Just to be fair...). Top 2 teams- bye in rd 1. Then we have a 4 team playoff with the remaining. Only two teams wind up playing an extra game.
Done, fair, sensible, easy... Never gonna happen! Too many people are too scared to make real changes to CFB, scared they will lose money!