We’ll see with time.
Some people say Rafa’s team that won the Champions League was basically built by his predecessor, Gérard Houllier.
I know that about Wigan, doesn’t have much to do with the conversation though. Egg-Chasers, Rugby.
I don’t recall any of Moyes’ Everton teams being on the side of 8-0 and 9-1 hidings or being dropped, fighting relegation every year either.
Also, I give all the credit in the world to Wigan for winning the FA Cup; But all the same, a wide array of clubs have won it, Sunderlands, Wolves and so on and some of those clubs have won more than 1. https://en.wikipedia.org/wiki/List_of_FA_Cup_winners