ESPN wouldn’t be doing it because they think Cal and Stanford are worth an ACC share.This is a pipe dream, these teams (Cal, Stanford) were worth less money in a league where they had plenty of natural rivals. They are not suddenly becoming worth more money by partnering with schools on the opposite coast that they have nothing in common with. If no one was watching Cal vs UCLA, even fewer people will watch Cal vs NC State.
They would be doing it to get Clemson and FSU to the SEC, while keeping the ACC alive because it fills so many programming hours on ESPNs networks.