ROSEMONT, Ill. (AP) — Officials in charge of the College Football Playoff have opened two days of meetings in suburban Chicago. The main topic is whether to expand the four-team playoff to 12, as proposed by a working group. Six spots would be reserved for league champions and the rest would go to at-large teams. The discussions put league championship games in the spotlight. The winner would would be in the mix for a playoff bid, but an upset would hurt the league’s chances overall.