things like what if a one loss North Carolina beats Clemson. Lots of games left to be played.... I'm for an 8 team playoff (because I think BYU is about 10x more likely to get into an 8 team playoff than a 4 team playoff). The more teams this year who feel they deserve a shot in the final 4 the better.

http://www.yardbarker.com/college_football/articles/worst_case_scenarios_for_end_of_college_football_season/s1_12680_19950709