While it would be fun to watch some of those "final four rerun" games in the following season, it really isn't logistically possible in football like it is in basketball. Plus if one team lost a lot of players the game could be a dud - I am generally of the opinion that it is best not to try to recreate history - just let it lie.
However - my #1 rules change would be this - No more FCS/1-AA teams on the schedule, period. End of story, end of discussion.
#2 - only 1 OOC game can be against a mid major - all the remaining ones MUST be against P5 teams. There are enough Kansas, Wake Forest, and Wazzu teams to fill the docket.