The College Football Playoff has used a selection committee since its first season in 2014, and that hasn’t changed. A 13-member committee, which has announced its rankings weekly since November, will set the bracket when it unveils the final 12-team rankings on Dec. 8.

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.

The fourth edition of the College Football Playoff Rankings were released Tuesday night with undefeated Oregon maintaining its spot at No. 1 as has been the case in every set of rankings during this initial year of the expanded 12-team field.