I might have a little difference of opinion here. But credit where credit is due, Martial on the ball yesterday was a joy to watch. He was a man transformed, his close control and his dribbling skills were a joy to behold. I truly am excited to see how the boy matures and develops.
However, and there always is a however in any discussion, I did feel that he was a little bit undercooked in his positions as well as his off-the-ball movement. Case in point, in the first half, he passed the ball to Mkhi and then stood about 10 ft away from the box rather than dashing towards the goal/ making a diagonal across the passer to receive the ball. I often found him standing on the ground, not being an option to pass the ball to.
This has often been my criticism of Martial, he'd rather receive the ball in a stationary position than take the ball while running. This is not to say this is a capability differential, I've seen him control the ball on the move. But you'll notice that he would more often than not ask for the ball at his feet than point to the position he'll make a run towards. He really needs to improve on that front, any Mourinho team would have swift transitions between defense and attack, a static receiving body does not help in those cases.