For me, its the three CMs that dictate the formation given how much pressing and possession our game involves, and which is why the 433 is the way to go.
Well yeah, that's what I'm saying.
But the width given by attacking players is also very important. That's why the 3-5-2 doesn't work despite having the same 3 CMs in the line-up. We field a full back to provide width on one side and Licht isn't good at that, while on the other side the other player who should give width is a lot less attacking (Esti was playing there usually).
I was talking about the available players and how that particular 4-3-3 is by far the best way to go. With new additions in the summer the 3-5-2 might become a better suited formation for Juve. Right now it isn't.
But buying players for a 3-5-2 will demand more money. We will still need a prolific striker and we will need two quality wingbacks. We will lose Licht though because he'll be almost useless as a wing back. In 4-3-3 we will just need one or two attacking players and keep as much as 9 of the current starters.