With only 8 games, you pretty much can only do 1 crossover rival. The SEC started with 2 and found it didn't work. So they went to 1, as did the ACC and both found it worked okay.Looks like they will have 1 crossover team they are guaranteed instead of 2 as was thought.
Ohio State WILL continue to play Michigan on the last weekend of the year, before the championship game.
They are also keeping to an 8 game conference schedule for the time being (probably till 2015)
If they had a 9 game schedule, then 2 rivals would work great.