Why not?
Dominate a new league with clear title contenders.
Possibly win another CL with another team.
On paper, that would make him the GOAT. Winning three different league titles would enhance his legacy, but to win the CL with three different teams would make it unquestionable.
This is a smart move on his side.
And how is juventus a step down? They’re the biggest club in Italy and have made the CL finals twice in the past four years. Considering the uncertainty with Real Madrid right now, it’s not a bad move.