There was some significant movement in the new rankings released after the Week 13 games. While the top four teams in last week's rankings —Oregon, Ohio State, Texas, and Penn State—all took care of business, other teams projected to be in the 12-team College Football Playoff bracket suffered losses.

In the new, expanded 12-team playoff, the five highest-ranked conference champions will make the field along with the next seven highest-ranked teams. The four highest-ranked conference champions will be awarded first-round byes, with the other eight teams meeting at the campus sites of the Nos. 5-8 seeds.