You know its funny.
You look at Real Madrid's bench in that final. Asensio, James, Bale, Morata vs Cuadrado. That sais a LOT.
The reason why we looked more comfortable in Europe (final aside) this year was because we had more of an offensive OUTLET. It meant we didn't need to dominate midfield and be overly reliant on defence and ALVES added a lot of experience and winning mentality and belief which I think cannot be underestimated.
We need more of the same. Defence doesn't need to be touched - only a replacement for Asamoah maybe and we need to investigate long term replacement for Buffon after next season. We need an attacker that scares the opposition like Ronaldo, Messi, Robben, etc can do. We need to find those pacey scary players. Morata had that for us to an extent at times.