There’s a list of names you might be thinking of that don’t qualify for this conversation. Think of coaches for teams that semi-recently joined the ACC. The great coaches from Miami’s history don’t apply, as they were all in the Big East during the Hurricanes’ heyday. So no Howard Schnellenberger, Jimmie Johnson, or Dennis Erickson makes the list. You can also take out Steve Spurrier, who only coached a few seasons for Duke. The vast majority of his accomplishments were at Florida and South Carolina.
Some other big names that are questionable as to whether or not they should make this list are Wallace Wade (Duke) and Bobby Dodd (Georgia Tech). They were good coaches in their own right, but neither Duke or Georgia Tech were in the ACC during their tenures. Neither applies to our discussion here.