Seems weird, given that he rarely uses Rashford as a 9.
Lukaku wasn't pushed out, he was told that he wouldn't be first choice for the striker spot. Entirely fair, given Lukaku's general level of performance for us under both Mourinho and Ole, and the way Ole wanted to play. Lukaku's hold up play used to be atrocious (he's improved a bit since, now he's merely bad at it) and his touch is awful. If you want to play with quick transitions, the last thing you want is a player with a poor touch, because that'll kill your transitions.