Discussions for how to structure the NCAA’s expanded College Football Playoff have crossed the goal line. Effective next season, the 12-team playoff will include the five highest-ranked conference champions and seven at-large selections, the CFP’s board of managers announced Tuesday in a unanimous agreement. Billed as the “5+7” format, the new model will see the four highest-ranked conference winners receive first-round byes, with the No. 5 seed opening against No. 12, No. 6 facing No. 11, and so on. The decision marks a revision to an earlier model that would have granted playoff spots to the…