Texas and Southern California dropped out of both major polls, which were released Sunday, after taking upset losses.
The Longhorns fell from the No. 15 spot of the Associated Press' top 25 media poll after losing 40-21 to host BYU and USC dropped from No. 25 after a 10-7 defeat at home against Washington State.
Texas and USC, which were No. 16 and No. 22 in USA Today coaches poll, also dropped out of that top 25.
Previously unranked Miami leaped to No. 15 after a huge 21-16 victory over Florida in the AP poll and to No. 18 in the coaches poll.
Alabama is still No. 1 in both polls after a bye week. It received 57 of 60 first-place votes by the AP. The Crimson Tide face No. 6 Texas A&M on Saturday.
Oregon moves up a spot to No. 2 and Clemson climbed to third. Ohio State slipped to No. 4 and Stanford remained No. 5. Oregon, Clemson and Ohio State each received one first-place vote.
In the coaches poll, Alabama got 58 top votes. No. 3 Ohio State picked two first-place votes, while No. 2 Oregon and No. 6 Texas A&M received one vote each. No. 4 Stanford and No. 5 Clemson rounded out the top five.