Agreed, the ACC would have really have plenty of incentives for ND. Hypothetically, let's say that this happens in 2016.

Here's ND's current 2016 schedule: * at Texas * Nevada * Michigan State * Duke* * at Syracuse * at NC State* * Stanford * Miami* * Navy * Army * Virginia Tech* * at USC

I think they would first get help from the ACC to pay-off Nevada and Army, opening up two dates for Pitt and FSU. They have four of UNC's scheduled opponents already, so they keep those. They then swap out Syracuse for UNC's planned trip to Virginia. That gives ND seven ACC games and Syracuse is left scrambling to fill a spot like Nevada/Army.

Here's the only tricky part, I think. ND would need to drop one of their five OOC games (at Texas, vs. Michigan State, vs. Stanford, vs. Navy and at USC). Navy is untouchable, as are USC and Stanford who proven to be Notre Dame's priority in terms P5 rivals due to recruiting ties in California. That leaves Texas or Michigan State. Because the Texas game is on the road in Austin, I think it's impossible for them to drop it. It hurts Texas and that's a big time recruiting game. So they need to drop Michigan State so they can add UNC's last ACC game, Georgia Tech.

They could make some sort of agreement with MSU to push back that game to 2023, if not 2018/19. Or maybe ND makes a concession and pushes them back to 2023 and extends their 2026-2027 home and home from 2023 to 2027.

Either way though, they'd have to figure something for that MSU game. So this is their schedule:

Here's ND's current 2016 schedule: * at Texas * Nevada (at Pittsburgh) * Michigan State (Georgia Tech) * Duke* * at Syracuse (at Virginia) * at NC State* * Stanford * Miami* * Navy * Army (at Florida State) * Virginia Tech* * at USC

TL;DR: Outside of figuring out what to do with Michigan State, Notre Dame could take on UNC's 2016 schedule pretty easily if it came to that.