US President-elect Barack Obama was on Sixty Minutes last night, and even though he's clearly got way, way bigger things to deal with, he's still got enough time to stump for a college football playoff system . It's "the right thing to do," he told Steve Kroft. "Eight teams. That would be three rounds to determine a national champion," he elaborated. "It would add three extra weeks to the season. You could trim back on the regular season. I don't know any...