I would like to see the plus-one format expanded tp the top 8 teams. After all, there are too many variables during the season, from uneven strength of schedules to outright biased voting, and an larger pool of teams would mitigate some of that weakness. Also, flush about half those year-end bowls. More of them dilutes the experience and is tantamount to participation trophies.
I want to watch football, ESPN has money for TV, and places like Birmingham get some tourism.
Minor bowls are win-win-win.
The Plus one is inevitable. They have already made the title game its own “bowl” and have made it a week after New Years.
The more rounds you add, the more injuries will play a factor, I think a 4-team playoff would work just fine.