Comparing LaRussa and Lamont is apples and oranges. Lamont took over a team on the rise that had finished second two years in a row and was loaded with Thomas, Ventura, McDowell, etc. LaRussa took over a dumpster fire from player-manager Don Kessinger.
This is not to admire LaRussa but he always was a superior manager to Gene Lamont. Also in his recent stint here he was clearly senile and out of his league.