Exactly. Jesus christ how many options are we having here.
That 4-3-3 finally becomes a viable alternative, but its not as strong as other formations we can field. But its massive we can perfectly play another formation if tactically significant.
'Oh, so you play 3 at the back ? Here, go play 1for1 with 3 skillfull pacy forwards who are excellent at beating their player. See how that goes

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Morata arrived here with half the games and a fraction of the gametime under his belt compared to Barbosa.
By the time its peanut butter quarterfinal time, we are like 8-9 months further.
By that time, Alvaro was beeing a better clutch then what they fit in a group C race car.
SO whats the problem ?
But if you insist :
3-5-2 : Buffon/Barzagli, Bonucci, Chiellini/Sandro,Pogba,Marchisio,Khedira,Alves/Pjanic/Dybala
4-5-1 : Buffon/Alves, Bonucci, Chiellini, Evra/ Pjaca, Khedira, Marchisio, Pogba, Sandro/ Dybala