There were several ACC's:
The Basketball ACC
The Football ACC
The Southern ACC
The Northern ACC
And, of late, the Desperate Grab ACC (SMU, CAL, Stanford)
Now that UNC has declared their allegiance to football (and seemingly to the SEC), Duke has inherited the mantle of ACC basketball supreme leader (but without their King... Coach K).
The Wizards of the Tobacco Road Cabal had the curtain pulled back and their mike's dimmed with the recent ACC Settlement. Bye, bye GOR...bye, bye owning media rights if you exit.
If the B1G, SEC, and Big 12 poach the ACC of six members, the neighborhood will look like Hiroshima the morning after Harry dropped the big one.