A number of fascinating points here...
Yet, 1.) Is this 'UT and OU to the SEC' thing a done deal? All inked and blotted? Nothing left to do but grab some Scotch and a good cigar?
2.) If #1 is indeed a done deal, the the BIGXII is Dead Conference Walking. It was essentially a vehicle to showcase UT anyway, and if that's done, well...
3.) Del Conte had to have been the prime mover here. I can't see that guy taking a back seat to anybody in full negotiating mode. I find it curious that he didn't give his old buddy Donati a heads up on all this. Maybe he did. Maybe there's some things already percolating that we have no knowledge of. You know, like this UT OU thing 48 hours ago...
4.) Everybody is fixated on ESPN/Disney in terms of broadcast rights. They're not the only game in town anymore. Amazon, YouTube, Netflix, all have the need for content, and have a zillion subscribers who will be ecstatic to get games without the ESPN baggage (5 minute commercial breaks, with the Same Damned Ads). They don't have to adhere to the normal rules of syndication/local broadcast/etc. They can do what they damned well please.
5.) Merge the PAC with the headless corpse of the BIGXII. Cut loose some deadwood (Baylor). Call it the Great Western Conference, or better, the Biggest Football Determinant*. Work out a Tier 1 arrangement with Amazon, or whoever. Profit!
*Who doesn't want to be in the BFD?