Hypothetical standings going into Championship week:
1. Florida State 12-0
2. Alabama 11-1
3. Notre Dame 11-1
4. South Carolina 11-1
In this scenario, Notre Dame's only loss was a 27-24 overtime defeat to 10-2 Stanford, while South Carolina got blown out by 5-7 Tennessee. Let's say South Carolina goes into the SEC championship and beats Alabama. ND doesn't play that week. We're jumped by South Carolina and the new standings are:
1. Florida State 13-0
2. South Carolina 12-1
3. Notre Dame 11-1
4. Alabama 11-2
Instead, if Notre Dame DOES play that week and beats a BYU or another school from a non-power conference, they have a buffer against the "leapfrog" effect. They started ahead of South Carolina and both teams won, so it's much more difficult for voters to justify shuffling them up, especially when ND had the higher-quality loss earlier in the year.
1. Florida State 13-0
2. Notre Dame 12-1
3. South Carolina 12-1
4. Alabama 11-2
Now I know this is the last year for the BCS but it will still be a situation where one or two poll positions make a difference. Rather than the "cutoff" being a drop from 2 to 3 to make the NCG, it will now be from 4 to 5 to make the playoffs. The fact is, a one-loss Notre Dame team will have 11 wins, while a one-loss conference champion will have 12 wins. That hurts.