Clemson was not the only unbeaten team to pay the price for a less-than-challenging schedule. The committee slotted Baylor at 12th, one spot below its place in the A.P. poll, and Minnesota was 17th, four spots lower than in the poll.
Perhaps the team with the real worry should be Alabama, which has made the playoff every year since it began in the 2014 season. In previous years, the No. 3 team in the initial ranking has never made it to the playoff. Last season, it was L.S.U., whose title hopes collapsed with a 29-0 loss to Alabama. The year before that, Notre Dame was routed at Miami. And before that, Michigan, Ohio State and Auburn went down.
If Clemson garners a playoff spot for the fifth consecutive year, that could leave Ohio State, Penn State, Alabama, L.S.U. and Georgia (ranked sixth with one loss) scrapping for the final three berths.
It may take considerable disruption over the final month of the regular season for a team from the Big 12 (unbeaten Baylor or once-beaten Oklahoma) or the Pac-12 (once-beaten Oregon or Utah) to make its way into the playoff. While Georgia has the worst loss among the once-beatens (at home against South Carolina) it also has two of the best wins (over No. 15 Notre Dame and No. 10 Florida).
The team that might be best equipped to make a jump is No. 7 Oregon, but the Ducks’ hopes largely rest with the team that defeated them in the season opener, No. 11 Auburn.
If Auburn wins the rest of its games, that might do more than burnish Oregon’s résumé — it could also put a dent in the hopes of two contenders that will visit The Plains: Georgia on Nov. 16 and Alabama on Nov. 30.