Realignment/Evolution - they go to four 20-team super conferences. Then the conferences decide to go to two divisions each, the A's and B's. The A's gets a bigger cut of the tv dollars because they are the better teams (A = Ohio State, B = Illinois). Then the A's and B's split so the Power conferences are able to jettison the dead football weight. It comes full circle. I hate this entire poaching mess.
Bullspit. In 2003/2004 the CIC member institutions spent north of $32 million purchasing a massive amount of fiber optic cable in order to establish the OmniPop research intra-network. OmniPoP links each CIC university together via a complex hub network in Chicago. The system is capable of carrying amounts of data degrees of magnitude greater than the current internet, and operates completely independently of the regular internet. The CIC describes the BTN as being the peer institution to OmniPop. Without OmniPop having been established for research purposes, the BTN would not exist in its current form.
BTW, Illinois is central to the B1G's current & future research success. The Blue Waters supercomputer at UIUC is the only petaflop-capable supercomputer on any university campus in the United States. Currently, any research institution in the world may access Blue Waters, but if and only if the National Science Foundation approves the submitted proposal. At some point in the future, the NSF oversight will expire, and control of the supercomputer will revert to Illinois. At that time, I'm certain Illinois will allow exclusive access to Blue Waters via OmniPop for all members of the CIC. One reason why OmniPop is crucial for future shared petaflop computing is that the current internet is inadequate for sharing real-time or near real-time Big Data.
In short, the CIC via its member institutions has beaucoup bucks and resources wrapped-up in shared brick-and-mortar infrastructure. That's why no current B1G school is leaving, and also why it's crucial that B1G presidents choose any members very carefully when making a "100-year decision," as Delany puts it. The only circumstance under which a current B1G university leaves the B1G is if that school drops sports a la the University of Chicago and reduces its membership to the CIC only. I don't see that happening. I also don't see the sports revenue sharing arrangement in the B1G changing, either.
Equal sharing has kept the conference stable for so long, and it contributes to a shared identity. Besides, from a B1G P.O.V., why risk bruised egos over unequal sharing from revenue sports, when revenue from big science dwarfs revenue from sports. It's a pennywise, pound foolish argument.
One parting thought--the CIC is like a roach motel: once they check-in, they don't check-out.