College football rankings: The Bottom 25 Playoff is here with UMass, Colorado top seeds in 12-team field | CBS Sports Headlines College football rankings: The Bottom 25 Playoff is here with UMass, Colorado top seeds in 12-team field With the regular season over The Bottom 25 Playoffs will determine the … Continue reading College football rankings: The Bottom 25 Playoff is here with UMass, Colorado top seeds in 12-team field