If we look at Man United's performance so far, it's not surprising if you doubt Man United will enter the top 4 at the end of this season. Man United
does have quality players, but unfortunately Man United still hasn't found a suitable strategy, so the star players owned by Man United could not
You have to see that currently, Man United is in 4th position and if you are still not convinced, in the previous 5 games Man United has improved in beating the opponent. From 5 matches including FA Cup with Aston Villa in 3rd Round, 4 wins by narrow score, and 1 draw against Aston Villa in Premier League. So far I think Man United made a few moves although not as significant as possible.