Let's apples-to-apples the men's sports situation.
The Big 12 offers 10 men's sports.
Of those 10, here's what the lineup of B1G schools looks like:
10 - Indiana, Michigan, Michigan State, Minnesota, Ohio State, Penn State, Purdue
9 - Illinois, Nebraska, Wisconsin
8 - Iowa, Rutgers
7 - Northwestern
6 - Maryland
Now, compare it to the Big 12 lineup:
9 - Oklahoma, Oklahoma State, TCU, Texas
8 - Baylor, Texas Tech
7 - Iowa State, Kansas, Kansas State
6 - West Virginia
The Big 12 offers 10 men's sports.
Of those 10, here's what the lineup of B1G schools looks like:
10 - Indiana, Michigan, Michigan State, Minnesota, Ohio State, Penn State, Purdue
9 - Illinois, Nebraska, Wisconsin
8 - Iowa, Rutgers
7 - Northwestern
6 - Maryland
Now, compare it to the Big 12 lineup:
9 - Oklahoma, Oklahoma State, TCU, Texas
8 - Baylor, Texas Tech
7 - Iowa State, Kansas, Kansas State
6 - West Virginia