If you mean who had the best couple of years I would say Maradona, because Maradona voluntarily went to Italy back before moving to different countries was a thing, just for the challenge of facing the defenders there - back when Italy repeatedly won the world cup on defence, when penetrating Italian defence was harder than talking your way out of a Spetsnaz prison. And Maradona dragged Napoli from mid table right to the very top to win Serie A, and he wore a shirt that said Super Nintendo.

https://www.youtube.com/watch?v=XJ4qF0QkcT4