In a pure a la carte scenario, ESPN would drop the network crap, move to a Netflix subscriber model over the Internet, broadcast a crap ton of games, do a bunch of original programming like 30 for 30 and PTI, cut back on SportsCenters and then, ultimately, pay a lot less for rights fees.
If college teams want to make money in the future of a la carte, their bargaining power will be as larger, consolidated groups like how the NFL does their bargaining. I've kind of thought for the last year or so that conferences will grow to 18-20 or so teams, and they'll be more about creating regional divisions that cut down operational costs and promote attendance, while having larger conferences that allow these schools to have greater weight at the bargaining table.