But the problem is, if they are in different divisions, they just won't play that often. From the article in the base note

Take one division template, which features Ohio State, Penn State and Wisconsin on one side and Michigan, Nebraska and Iowa on the other. If the Big Ten had added Nebraska along with the Nittany Lions in 1993 and split into divisions then, the Buckeyes and Wolverines would have met in the title game either three or four times in the last 17 years.
That means 13-14 times out of the last 17 years, they *don't* play. I just can't see that happening.