I can't argue this as eloquently or informed as many posters here, but it does seem to me that there should (could?) be two tiers of FBS.These are 2015 NCAA attendance numbers and I would guess they fell off some more in 2016. If you use an arbitrary 25,000 attendance number for inclusion in the FBS division then based on these numbers, 46 teams would be relegated to a lower division.
http://www.cbssports.com/college-fo...s-for-fifth-straight-year-but-at-slower-rate/
Perhaps go to 40 teams in each tier, divided into 5 conferences of 8 teams. Conferences could be the leftovers of ACC, SEC, B10, B12 and P12 so it stays somewhat regional.
Teams from Tier I must schedule Tier I for OOC games, with the exception of ONLY 1 Tier II team.
Meanwhile, Tier II teams can schedule as many Tier I teams for OOC games as they want - in order to strengthen their SOS.
I'd have to consider how a champion would be decided...