That would mean around 25 teams would have to get into the P5.
This is why I think the BigXIIwill be dissolved. Basically redistribute the BugXII to the other conferences and get 4 conferences of 16 teams. Now someschools may drop out (can't keep up within the CFB arms race) allowing some others to move in, but there's no way the system will allow for dilution to occur by having five conferences of 16.