BCS weaknesses for undefeated teams

Andrew Luck and the Stanford Cardinal remain undefeated this season. Cary Edmondson/US Preswire

The Oklahoma Sooners and Wisconsin Badgers tumbled out of the top 10 of the AP poll this week following their Saturday night losses to Texas Tech and Michigan State, respectively, leaving the Stanford Cardinal as the lone top-10 team clearing every statistical benchmark set by past BCS champions (the Sooners, in case you were wondering, dropped a benchmark in the process, while the Badgers remain on a statistical pace that closely resembles past national title winners).

The Cardinal still haven't faced much of a challenge yet, however, and we could see their numbers (which, at the moment, are stellar) drop a bit as they enter a five-week stretch that includes games against USC, Oregon and Notre Dame. That's important to keep in mind. But Stanford and fellow front-runner Alabama, which is currently just off the pace in one benchmark -- sacks per game -- and for the most part resembles past national champs very closely, do have the advantage of not having any glaring weaknesses.

Not every title contender can say the same thing, however. Using our Eliminator model (which tracks the BCS and conference title races based on historically significant stat categories -- for a full explanation of the model, click here), we've identified the areas of concern for three of the top remaining undefeated teams.