The ACC needs ND’s hand forced without the ACC doing it.
Have the SEC do it.
Back channel with ESPN to do it.
Let ND go to the B1G if they don’t want in the ACC but it would finally end this chit.
The only way to force ND's hand is for the ACC to end the 5 game agreement and for the P5 schools to all go 9+1, and even then it might not be enough. You might need to have scheduling agreements on top of that (agree to 2 games vs each conference). If the pool of P5 OOC games is limited to where ND cannot get 10 games scheduled, they will have a harder time making it as an at large. Then they would be open to joining a conference.
Saying that you need to be in a conference to get an at large bid is silly.
If ACC had the 4 SEC games plus an additional 2 SEC games, 2 B1G games, 2 B12 games, and 2 P12 games, then there would only be 2 open slots left.
If the B12 had the 1 B1G game, 1 P12 game, 1 SEC game plus an additional 2 B1G games, additional 2 P12 games, additional 2 SEC games, and 2 ACC game, then there would be only 1 slot open.
If the B1G had the 1 B12 game plus an additional 2 B12 games, 2 ACC games, 2 P12 games, and 2 SEC games, then there would be 5 slots left.
If the P12 had the 2 ND games, 1 B12 game plus 2 additional B12 games, 2 ACC games, 2 B1G games, and 2 SEC games, then there would be only 1 open slot left.
If the SEC had the 4 ACC games, 1 B12 game plus and additional 2 ACC games, an additional 2 B12 games, 2 B1G games, and 2 P12 games, then there would be only 3 open slots left.
So there would only be 12 teams looking for a 10th game. For ND to get to 10 P5 games they would need to convince 8 of those 12 to play them, or convince a team to take on an 11th P5 game. ND could still make this work but it wouldn't be easy. Is that enough to convince them to join? I think it would be given that their other sports are looking at the Big East.