Manchester United should keep a player like Rashford in the team even if he is not in the starting lineup, Rashford is a good player and if he has a good coach he will have a better season, Manchester United can use Rashford as a striker, Manchester United looks broke to me because they can’t sign good players like the other clubs are doing since the transfer window.
I don't think Rashford would get any other opportunity in Manchester United, Amorim made it clear when he arrived, though i don't know why he came to such a decision, the attackers in Manchester United are not any better than Rashford. United keep hiring managers who cannot keep some of their pride aside and coach the team, that's why they keep clashing with players, Amorim is going down that same direction, just like his predecessor, Ten Hag, and we saw how that ended for him.