BCS Rankings 2011: LSU Tigers and 4 Ranked Teams That Will Fade Fast

There's only one place to go from the top.

So LSU beat out Alabama for that No. 1 spot. All the more reason the Tigers will hit a wall of vengeance when they travel to Tuscaloosa (Not to mention Bama's running back machine, Trent Richardson).

It doesn't help that there is uncertainty in the quarterback situation for LSU, as coach Les Miles has both Jordan Jefferson and Jared Lee at the spot.

With Auburn up next and then the daunting Tide to fight against, they could be dropping.

Here's who will be joining them on the slip.

Kansas State

Kansas State has been winning but not in a convincing manner.

The Wildcats have merely been finding a way, with their most recent 41-34 win over Texas Tech. That won't work for them with what lies ahead.

With a schedule about as scary as Halloween, the Wildcats could go from undefeated to 6-4 in a month as they take on Oklahoma, Oklahoma State, Texas A&M and Texas.

Georgia Tech

The past week, Georgia Tech let Virginia running back Perry Jones rush for 149 yards and allowed the team to hold onto the ball for a full six minutes in the closing play.

They will be taking on Miami before hitting two ranked opponents in Clemson and Virginia Tech.

They'll need to shape up the defense to take on the Hokies, which will be coming off too very likely wins against Boston College and Duke.

Miami is on the rise, playing some of its best football of the season in the past two games. With Georgia Tech's weak defense, the Hurricanes could make for the Yellow Jackets' second loss of the season after their 5-0 start.

South Carolina

For South Carolina, there's one reason for the potential collapse: Marcus Lattimore is lost for the season.

The sophomore's knee injury against Mississippi State ended his season and possibly any hope for the Gamecocks.

Without the star running back, South Carolina's offense has little to offer.

Clemson

If the Tigers want to continue winning games, they need to fix their defense. 

Clemson allowed 468 yards and 291 rushing yards against unranked Maryland.

Ahead is UNC, which has tailback Giovanni Bernard had a 100-yard rushing performance this weekend. 

If Clemson's defense plays the same way as they did against the Terps, Bernard and the Tar Heels could run right over the undefeated record.