Keenum threw for 435 yards Saturday and engineered a late touchdown drive that led Houston to a 29-28 victory over Texas Tech. The victory came just two weeks after Keenum outplayed Zac Robinson in a 45-35 upset of Oklahoma State.
Those two victories over Big 12 opponents put Houston into BCS contention, and they also made Keenum the new No. 1 quarterback in the Rivals.com College Football Power Rankings, which measure the nation's top performers at each position.
"If you don't look forward to that and have some type of nervousness and excitement, then you're not alive," Keenum said after the comeback. "You're not human. If you don't feel something in these types of games and [don't] love the adrenaline, then you're not living. It's a lot of fun. I'd like to do this every week."
Keenum moved ahead of Tebow, who threw for 103 yards and ran for 123 yards and two touchdowns before suffering a concussion in a 41-7 rout of Kentucky.
Keenum's rise wasn't the only change atop the power rankings.
Cincinnati's Mardy Gilyard took over as the new No. 1 wide receiver after catching nine passes for 177 yards and two touchdowns in a 28-20 victory over Fresno State. Gilyard leaped ahead of Oklahoma State's Dez Bryant, who sat out a 56-6 blowout of Grambling because of a hamstring injury.
"I feel like we have a comfort together," Graham said of his chemistry with Wisconsin quarterback Scott Tolzien. "Third downs, you try a little extra hard to get open. You have to go extra hard on third down. But I guess you could say I'm a little security blanket."
"He was all over the place," South Carolina coach Steve Spurrier said. "That's how you stop good passing games. We talked about Jevan being a good passer and an NFL quarterback, but when you get good pressure in his face, it's hard to throw."
The other change came at the top of the special teams rankings, as Stanford's Chris Owusu took over the top spot from Clemson's C.J. Spiller. Owusu has returned the opening kickoff for a touchdown in back-to-back games, including a 91-yard score Saturday in a 34-14 victory over Washington. Owusu already has scored on three kickoff returns this year to tie the Pac-10 single-season record previously set by USC's Anthony Davis (1974) and UCLA's Matthew Slater (2007).
The rash of injuries this season continued to affect the power rankings by forcing the removal of Baylor quarterback Robert Griffin and Alabama linebacker Dont'a Hightower. While the power rankings do include injured players who are only supposed to miss a few weeks, we remove players who aren't expected to return before the end of the regular season.
The ranking of a player and coach can fluctuate each week during the season depending on how he fared the previous week. The power rankings measure overall career performances as well as their most recent results.