It's always amusing when someone makes a definitive statement on a 19 year old kid. I think Rashford has good solid foundation to be a good striker. I think a guy like Ibrahimovic, as good as he can be, is a confidence-sucking teammate. His personality is so big, that everything must revolve around him and for a young striker, sure you might learn a few things from being around a great striker, but more than anything you need confidence. I think the team would be much better off getting rid of Zlatan and complementing Rashford with an experience striker. Somebody like Griezmann, regardless of how he is utilized by Mourinho, will have positive repercussions on Rashford's development.