Sanchez would be indeed very good signing and a player that would improve our attack much. He's not goalscorer but he's close to what Vucinic is like in terms of team impact imo. The guy can take the ball with his back to the goal and pass it to make that difference. With Sanchez Arriving we could finally use 4-3-3 properly because the guy is so hardworking he would suit for RW position perfectly.
If we pair Vucinic and Giovinco who are wingers (they feel well on the left wing, especially Gio) With someone like Llorente/Matri who are typical poachers and add to that Sanchez who actually can play on both wings we'd definitely close the gap between us and Europe's big guns to minimum. We need to improve our attack, ball control and move it faster forward if we want to be on the same level with Real, Barca, Bayern, Man Utd and Dortmund who I consider as Europe's finest right now.
Vucinic/Giovinco - Llorente/Matri - Sanchez/Pepe
This forward line looks much better than what we presented in Munich:
Quagliarella - Matri
And looks much better than our main option which Conte uses a lot this season:
Vucinic - Giovinco
I'd say the first one is too heavyweight and not creative, while the second pair is exactly the opposite but they can't finish for their life.