He would shine under a WC coach who would know how to use him.
It's clear by now that he's better closer to goal. He has the physicality to play as a wide man running from deep but he's no right midfielder, we shouldn't be seeing him in positions where he makes those suicide passes across to our central defenders or DM. That is the role for Cuadrado et al.
He needs to occupy the same sort of spaces that Dybala does when he plays slightly to the right. Granted, he's not a CF/SS like Dybala is but he does his damage in that area where he can come inside or go to the byline.
That said, he's had a fair amount of disappointing games and he needs to improve a lot, but it's already been noted that he is 20 and in a failing team. He's a long term project.