The Big Ten needs to learn to count and swap names with the Big Twelve.
But even the division line-ups are screwy. What would make sense is East and West (even the time zones would make sense), as follows:
The western six: Nebraska, Minnesota, Iowa, Wisconsin, Northwestern, Illinois
The eastern six: Indiana, Purdue, Michigan, Michigan State, Ohio State, Penn State
The "Big Ten" gets an "F" in Arithmetic and Geography.