Since the various former Big East schools moved to the ACC, there have been differing levels of success.
Notre Dame has had some real ups but also some real downs. Buzz Williams had Virginia Tech on the verge of greatness before he bailed for Texas A&M. Louisville did well under Rick Pitino until the program imploded, yet seems to have quickly found stability under his successor Chris Mack. Pitt and BC collapsed and Pitt is only now moving back up. Miami may have made the transition the best so far because it hired a brilliant coach in Jim Larranaga who specializes in scrappiness and resourcefulness.