I remember the jest about Aggie leaving the BIGXII and heading to the SEC: "In doing so, they raised the aggregate IQ of both Conferences."
Vandy, Rutgers, Indiana, Purdue all serve a purpose: They are easy Conference wins for the Teams That Matter. Every Conference has it's doormats, and they have value just like the big properties. The Globetrotters had to have the Generals, and thus Alabama needs Vandy. I would be very, very surprised if the Big Conferences cut away some deadwood. As someone earlier remarked quite wisely, "Where does it stop?" If you cut off Indiana, why not Illinois? Purdue? If you dump Vandy, what about Kentucky? South Carolina?