Some fully blossom later, especially technical wizards, I find.He turns 25 in 2 months. Really shouldn't be "pretty raw" still at that age.
In retrospect I was perhaps a bit too harsh when I said pretty raw. He isn't the finished article, needs to learn how to keep it simple sometimes, and gotta do more defensively...but he's already improved loads since I first seen him.
Also, though I know a thing or two about the game, it's entirely possible that a proper top level football manager like Ange thinks he's further along. I'll value the big fella's opinion over my own anyday

Such an exciting kid anyway. Whether you're up or chasing the game, you bring him on for the last 30 mins, you can bet he's gonna try to make stuff happen. He'll drive you nuts on occasions cause he'll waste a few cartridges, but then out of nowhere he'll lay the perfect assist or score a worldie. He's no Lucas Moura running into blind alleys 9 times outta 10, the lad defo has an end product.