433 looks like the solution for a better defense (Chiellini's and Benatia's brainfarts permitting, imo it was Chiellini's fault also the ball Roma hit the post earlier).
But without Dybala we rely too much on Pjanic for criativity.
If Mario as a LW was a need for the 2 men midfield work, what's the reason now? Of course he still is important, but with 3 mids it's important that the wingers are as offensive as possible.
At the same time, I don't think Dybala can play as a winger or inside forward. It's AMC or CF for him.
In other words, still need better tuning on the offensive end. The way it is we may fight for the scudetto, but will be out of CL in no time.