It's dangerous to develop ball reliance like Martial has. We've seen it with players like Ben Arfa and Queresma. They have a bag of tricks, and take the piss out of the other team with the ball, but lack footballing fundamentals. The vast majority of a player's success comes from working on off-ball qualities both in attack and defense. An attacker that is always on the move, making the defenders second guess themselves, that is what all world class attackers are. Martial is probably as talented as Mbappe, but Mbappe's game intelligence is so good. You can't pin him down, and if you gave him an inch of space he'd kill you. Martial seems quite easy to pin down, due to him coming short all the time and having a low work rate. It's a strange one because Martial is lightning quick, but it might just be that he doesn't see the game that way.