I actually feel for Rashford, he’s been in this sort of situation several times and its not easy to overcome.
The only thing he can do is to put his head down and work really hard for the team, but its difficult when you’re the “face of the club” and the highest earner, because you’re also expected to deliver the numbers.
Its a position Marcus Rashford should have never been in, he was never that level of talent nor he had the mentality.
Jose Mourinho got lots of stick for basically treating Rashford as a squad player, he played plenty but he was never the main striker or the main man, Jose knew Rashford was never that level of player.
Then Ole came along and decided to build the attack around him and Martial.
Martial had the talent but was incredibly injury prone and had poor mentality, Rashford was never ever the level of talent to be the main man of one of the 2-3 biggest clubs on the planet.
For his own sake, he should’ve left to play in an another league, but since he never wanted to leave, the minimum he can do is to get the basics right of being a wide player, work hard, track back, forget about being the main man, do the right things for the team.
Him running into blind alleys consistently thinking he’s supposed to be Neymar, is a problem and and its easy to rectify, just don’t do that, but it also goes back to the club forcefully turning him into a “Neymar” when he was never that level of talent to begin with.