You just wait for the ACC to crumble and give the schools who seem to care about athletics as a whole a home in a new mega-conference with the Big 12.
Assume UNC, UVA, FSU, and Clemson are gone to the Big 10/SEC and that leaves NCSU, VA Tech, Louisville, Miami, Duke, Cuse, and Pitt as schools that make sense in the Big 12. Find one more for 24 teams and you solidify as a the 3rd conference that can't be kicked out of football because it's this insane basketball conglomerate.
Assume UNC, UVA, FSU, and Clemson are gone to the Big 10/SEC and that leaves NCSU, VA Tech, Louisville, Miami, Duke, Cuse, and Pitt as schools that make sense in the Big 12. Find one more for 24 teams and you solidify as a the 3rd conference that can't be kicked out of football because it's this insane basketball conglomerate.