because for the first two schools added they have no choice thanks to the pro rata clause in the contract after that they would have to negotiate
According to Boren, they get a pro-rata increase for two or four. It is in the contract and it doesn't require additional negotiation.
DAVID BOREN: The provisions, of course, as you know do protect us so that current member shares will not be diluted if we were to add two or four more teams. There's a contractual obligation to pay that additional amount pro rata that we're already receiving if there is an expansion, a hypothetical expansion of the conference. It's already covered in our contracts, does not require additional negotiation of the contracts.