Warbler said:
are you asking how to decide what teams get in and what ones don't? Well, I think we need a 16 team playoff. You could do it one of two ways.
1: all the conference champions get in and the rest of the spots are decided by committee, like they do for college basketball.
2: keep the BCS formula and instead of selecting the top 2, select the top 16.
I think 8 could be enough, and 16 would take a month to complete the tournament. Although not perfect, I could see just having the top 8 BCS rated teams compete. Sure, it wouldn't be ideal, but you wouldn't have these problems where undefeated teams like Boise State, TCU, and Cincy get left out.
I don't like the idea of automatic qualifiers in college football. You end up with a team like Nebraska, which plays in the weak Big 12 North, only needing to upset one team in the conference championship to screw everything up. Almost happened this year.