#2 Alba and Messi's chemistry is unparalleled

Since Neymar's departure for PSG last summer, Jordi Alba has turned into a different beast. He has enjoyed greater freedom to bomb forward, which has enabled him to striker a deadly partnership with Lionel Messi.
Both the goals against Celta came by virtue of said partnership. For the first goal. Messi and Alba combined for an exchange of passes before Dembele scored from the rebound. Then Alba found Messi with a defense-splitting through pass to double the lead.
Under Valverde, Barca have played without an orthodox left winger quite often. This has given the attacking responsibilities on the left to Alba. Messi naturally cuts inside onto his left foot from the right side, and the first player he looks for is Alba. You would think that it must have become predictable by now, but as this game showed, it has not.