Mack Brown, Colt McCoy, and the Texas Longhorns sit atop The Associated Press Top 25 in the regular season for the first time in 24 years after beating Oklahoma 45-35. Texas' jump from No. 5 to No. 1 is the largest since Miami went from No. 6 to No. 1 on Aug. 29, 1988, after beating preseason top-ranked Florida State 31-0 to start the season. "Being ranked No. 1 shows respect for what we've accomplished through the early part of the season, but nobody really knows who is No. 1 at this point," Texas Coach Mack Brown said Sunday. Alabama remained No. 2, while unbeaten Penn State moved up three spots to No. 3. The Sooners dropped three spots to No. 4 after their first loss. Florida jumped six spots to No. 5 after pounding LSU 51-21 on Saturday night.