You get to bring back ONE feature from past CFB to permanently add back in today

It can be anything. Could be an old conference, an old bowl game, BCS/4 team playoff, etc. Heck, it could even be the amount of commercial breaks a certain era had. It can't be anything that directly affects your teams performance though, so if your a Nebraska fan you can't be like "Let's bring back our 90's glory!" or anything like that.