We really can't expect consistency from a 20 year old. If he does come here he'd be used sparingly, as an impact substitute primarily, at least to start with. When we make signings like this we look for a mix of raw talent and the ability to perform on the big stage, and that seems to be exactly what Costa has. It would obviously take a few years for him to develop into a world class player, to get some consistency and to refine his decision making, much like the process Ronaldo went through, having been signed at an even younger age. Don't take that as a Ronaldo comparison though, he was just a freak of nature, a young talent that just rocketed. What is true though is that Costa would offer a strong left foot and some serious pace, a combination that we dont have when looking through our wingers.
