A win against Clemson next year assuming Clemson wins this year’s championship and goes into Notre Dame undefeated next season would rank up there with the other notable winning streaks the Irish have snapped over the years including Army in 1947, Georgia Tech in 1953, Oklahoma in 1957, Texas in 1971, USC in 1973 and, of course, Miami in 1988. It would be hard to top the Oklahoma and Miami wins though. It depends what’s at stake. If Clemson and Notre Dame are both undefeated going into the game with a playoff berth is on the line, a win by Notre Dame would probably fall just behind the Miami win in 1988 unless Notre Dame goes on to win the championship next year and even then it would probably fall just a notch below the Miami win because of where Notre Dame was as a program the years leading up to that Miami win.
Lou might rank the wins differently though.