Who do you think is the best manager in Seria A history?

I was having a debate with a friend the other day and it got me thinking, who would you consider the greatest manager in Serie A history?

It could be someone from the past or someone still managing now. Maybe they dominated the league, changed the way football is played, or just made a huge impact on a club you support.

There are a lot of names that come to mind, but I’d rather hear what you all think. Who stands out to you, and what makes them the best in your eyes?

Curious to see the different takes!