It's not a perfect system, but I like 4 teams because it keeps the importance of the regular season. I think the best 4 teams were identified. If Ohio State wants to complain, they shouldn't get blown out by Iowa.
importance of playoff > importance of regular season
the champion is more meaningful when there aren't "this team probably could've made the playoffs and might've won if they weren't excluded" teams left at the end of the season
