GD is built on 12 team conferences, they're not gonna fix them anytime soon. though honestly they could fix them for the most part, delete the WAC conference since they will be discontinuing football soon and create a new Independent conference that lumps all the non conference affiliated schools and the schools from 14 team conferences that can't fit into the 12 team GD model.
eventually WIS will have to fix them overall though. there will be 127 FBS level schools by 2015 and the conference model WIS uses can only hold 120(which is the current number of FBS teams).
DePaul doesn't even play football anymore.
South Alabama,Texas St,UTSA & Umass move up to DI this year. fully in 2013 which will be 124 teams.
Charlotte,Georgia St & Old Dominion will be moving up in 2015. which will be 127 teams.