The issue I have with Coutinho is his end product. He would be on the same level as Oscar if he had a decent end product.
Sometimes he needs the ball to fall to him a certain way to score it. He isn't a natural finisher but his build-up play makes him a world beater tbh. If he could just get five or six more goals a season, he'd be on the PFA Player of the Year shortlist year in, year out. His trickery and speed of thought is exceptional - he thinks quicker than he moves his feet, and that says something!