Here's what I'd do...
We have 8 major conferences in D1. Scrape 1 cupcake off the regular season schedule, to reduce it down to 11 games. Have the champion from each of the major 8 entered into the championship pool. These teams play for it all and, by making it a requirement that a team be their conference champ, it removes ESPN's bias that produces the horseshit we have seen since the BCS's inception. In this scenario, only 2 teams will have to play a 15th game, but we will have a true national champion that is decided on the field. No bias, no bullshit, win your conference & you get a shot.
Everyone else (that qualifies) plays a bowl game.
Boom!