The Big Ten will probably leave ESPiN in the near future for FOX or NBC anyway(FOX more than likely).
Dunno. We're seeing how ESPN completely ignores those properties that don't play nice with their network. Is the B1G willing to go all-in on pissing off Bristol and losing Sportscenter time for a bigger payday from CBS, Fox, or NBC?
Plus, the B1G will be asking for decidedly more money for less inventory, as the B1G wants to put more of their Tier 2 games (e.g. Nebraska/MSU, tOSU/MSU) on the BTN so they don't have to share the revenue. So it's not like the B1G will be able to split the inventory between networks (a la the Pac-12) to make everyone happy, unless the B1G grows enough to where there's plenty of Tier 1 inventory to go around. That would require a NC, a FSU, a Texass to join, and it's not looking likely currently.
Frankly, if Larry Scott didn't have to worry about pissing off Bristol and getting excommunicated from coverage, the Pac-12 likely would have went all-in with Fox. It's unfortunately the political reality that won't change between now and 2015.
Ideally, Delaney would probably leave ESPN in a heartbeat if he could--remember, ESPN crapped all over Delaney's BTN idea, and Delaney hasn't been shy about displaying how wrong Bristol was with that. But the political reality is that they have to keep ESPN happy, somehow, or they risk being excommunicated from coverage. Unfortunately, that doesn't play well with kids (and the unwashed masses) who watch SportsCenter religiously.