Pete Misthaufen of the Bleacher Report posted a good breakdown of just what a Big Ten expansion would do to the rest of college football, coming on the heels of Wisconsin's Barry Alvarez joining Grandfather Joe in calling for their conference to expand.
Click the title link for the full explanation. But the short of it is, if Big Ten grabs their 12th team from the Big East, there won't be many waves. But if they grab from the Big 12, craziness will ensue. They assume that Missouri would go to the Big Ten. The Pac 10 would then try to keep up so they could have a championship game, so they would steal Colorado and Utah. The Big 12 would replace Colorado and Missouri with BYU and Colorado State (arguing that the small Texas schools would object to losing to TCU every year). The MWC would steal Boise State, Fresno State, Houston, Nevada, SMU, and Tulsa. The WAC would be decimated.
All speculation, but it is sure interesting to think about. Such a move by the Big Ten would indeed ripple throughout college football.
The Upset advocates that any new conference such as the Big Ten (since they couldn't be the Big 12, it already exists) ditch the lame "Big" moniker and go with something more classically directional like the old Southwest Conference. Great Lakes Conference?