The same problems we have with the BCS we will have with an 8 team playoff. Team #9 and 10 will likely have an argument to be #8..
Look at the current grouping
7. [ame="http://sports.espn.go.com/ncf/clubhouse?teamId=2641"]Texas Tech Football - Red Raiders News, Schedule, Players, Stats, Video - College Football - ESPN[/ame] 11-1
8. [ame="http://sports.espn.go.com/ncf/clubhouse?teamId=213"]Penn State Football - Nittany Lions News, Schedule, Players, Stats, Video - College Football - ESPN[/ame] 11-1
9. [ame="http://sports.espn.go.com/ncf/clubhouse?teamId=68"]Boise State Football - Broncos News, Schedule, Players, Stats, Video - College Football - ESPN[/ame] 12-0
10. [ame="http://sports.espn.go.com/ncf/clubhouse?teamId=194"]Ohio State Football - Buckeyes News, Schedule, Players, Stats, Video - College Football - ESPN[/ame] 10-2
11. [ame="http://sports.espn.go.com/ncf/clubhouse?teamId=2628"]TCU Football - Horned Frogs News, Schedule, Players, Stats, Video - College Football - ESPN[/ame] 10-2
12. [ame="http://sports.espn.go.com/ncf/clubhouse?teamId=2050"]Ball State Football - Cardinals News, Schedule, Players, Stats, Video - College Football - ESPN[/ame] 12-0