Hydde, I honestly cannot believe you're comparing Dybala to players like Muriel, Iturbe, and Abel Hernandez. Totally different style players, none of whom make those around them better. Nowhere near the intelligence level with those guys (or productivity, for that matter, when you consider goals + assists). There is simply no comparison there.
Jovetic has a lot of class, but his career has obviously been derailed by injuries; he can't stay healthy.
Cavani is a pipe dream, bud. Other than the fact that he's a good player who is having issues with PSG, and a bunch of reporters would like to connect Pogba with a move to PSG, Cavani moving to Juventus just doesn't make any sense at all. Both he and PSG would effectively have to accept, what, less than half what the previous transfer fee and current salary are? The guy we just bought last summer, who is playing extremely well, also isn't an ideal partner for Edi up front.
None of it makes sense to me.