I don’t understand views like this. Just because a good player is young doesn’t mean they need to improve dramatically or are a failure.
This opinion was stated constantly with regards to Rooney while he put in season after season of great performances befitting an attacker for a top side, as if somehow not elevating his game to the point of being mentioned with football’s all time greats alongside Ronaldo meant he wasn’t fulfilling his potential, had regressed and wasn’t good enough. It’s nonsense. Rooney, Ronaldo, Hazard, Fabregas - all young players who were, around the age of 20, showing enough quality to be a mainstay for their clubs.
Martial is in that bracket. He had a great first season - not ‘for his age’ or any other caveat. He had a great first season - period. This season has seen a return to that player after a very poor year.
Could he improve? Of course there are various aspects of his game that could be better and things he should work on. This, however, is true of all players regardless of age or position.
The truth is, players often don’t improve on the weak points in their game to any great extent. They develop and grow within the confines of their natural abilities and tendencies. We can all hope that Martial more adequately looks to run in behind and provide a penetrative run for his teammates. The likelyhood is that he will only marginally improve this (if at all), and will continually prefer the ball to feet. However, he will consistently cause defenders problems with his direct dribbling from this position, as that is his greatest strength.
In spite of any detrimental aspects of his playing style, he has the requisite quality right now as he is.
Martial is in that group of top Premier League creative forwards with Hazard, Coutinho and Sanchez - he has that level of skill, imagination and individual quality. He does not need to do anything other than what he’s doing now to be considered a top player. He could play as he did in his first season, or as he has been playing so far this season, for the next decade for us and he would be a great player.