Muffet McGraw kicked off Final Four weekend on Thursday afternoon with a serious and vitally significant viral video, sitting up on the press conference dais and eloquently championing gender equality both in sports and society. A day later, as Friday night turned into Saturday morning at the Amalie Arena in Tampa, her Notre Dame players were sitting in the home locker room, laughing and passing around a cell phone that showed a different video in which their coach, again, was in the process of going viral. This time the clip was of an ebullient McGraw doing an Irish jig on the court.