 The NFL may involve the Flexible Scheduling rule in the future to reassign games if the night game has less importance than the Dallas or Detroit game.In 2014, two developments would eventually allow for the networks to carry teams from either of the two conferences, something that was not allowed prior to this point.First, a system known as "cross-flex" was imposed, in which the two networks bound by conference restrictions, CBS and Fox, could carry Sunday afternoon games that would otherwise air on the other network.