As always at this point in the season, there are just a few teams that have somehow still gone unscathed.
Every week these teams are tested more and more, not only with the team they are playing against, but also with the thought of being undefeated with the weight of the world on their shoulders.
Some years there are just a few undefeated teams—which makes it easier on the BCS, of course—but some years, like this year, we still have plenty of teams who will have their case just because they are undefeated.
There is still half the season left to go, though, and plenty of time for the mighty to fall. This week is no exception to the upset bug.
Thirteen teams are still undefeated—more than half of the Top 25. Even though they are all susceptible to the upset, there is only a handful that must really beware.