I found it:
Here is a story about it: https://www.seattlepi.com/sports/article/BCS-has-to-hope-Walden-s-wrong-about-Florida-1221733.php
Then the box (where they destroyed them): https://www.espn.com/college-football/game?gameId=270080194
If I remember right (and maybe we are both right), he was the only person to give Florida the #1 ranking before their bowl game against an undefeated team and FU ended up winning.