i don't think you can do a round robin with 12 teams would have to be a cg. pac 10 does it with each team playing the 9 others and only 3 ooc and i think 10 is the most you can do it with. if the pac ten ever wanted to move to 12 they should probably invade utah and take the utes and byu. mizzou would also be a great team for the big ten to pursue and would bring even more questions as to who the big 12 would get to replace them.