If Martial maxes out his potential, he could be the type of player that changes a club's silverware outlook for a decade. Of course, he could also be a flash in the pan. Pato looked phenomenal as a teenager too and well....
I think FIFA video game should be a great scouting tool for real clubs. They know this kid would be "an exciting prospect" and rightfully so.
In all seriousness, yeah, I agree. It's scary that he's just 19 and looks like he could lead an attacking core. His ball control is superb, for a young player, as evident by his lovely first goal. He's got a nose on the net and he's got the pace to be a threat on the counter attack as well.
He could be world class in 3 years. Sad that he's in United. This guy could have been a PERFECT Arsene Wenger project.