Stability is often underrated. Notre Dame has not changed its head coach in a dozen seasons, and Jack Swarbrick has served as athletic director since 2008. It took some time, but that partnership eventually led to the current Irish resurgence in which Notre Dame has won at least 10 games in four straight seasons and five of the last six.
In that same timespan, USC has now fired three head coaches after cutting ties with Clay Helton on Monday and is on its fourth athletic director. Perhaps coincidentally, perhaps a direct result of that turnover, the Trojans last won 10 or more games in 2017 and have four such seasons total since 2010, when Brian Kelly took over the Irish.