It is not easy to play for Manchester United, the pressure is quite high in line with the expectations of the fans, when a player has a bad season it is very difficult to recover and find their best form. At their new club, Antony and Rashford play without much demands, which makes them comfortable and seem to enjoy every game more.
There are many examples of very relevant cases, some players sometimes do not fit the manager strategy, and no one is to blame for this. The question then is whether Antony and Rashford will return to Manchester United next season, after their impressive loan spells with their new clubs. I think Ruben Amorim can consider both players for next season.
I don't think that both of them have much to prove at Manchester united. After falling to deliver in two consecutive seasons and luckily gets a breakthrough from their loan spell, I don't think the plans to return will cross through their minds. Or perhaps, they might make their return if the higher salary happens to be their top priority than having a quality playing time and scoring goals.
Aside these two players, I think majority of the united players has been struggling for sometime now. Same thing happened under ETH. It looks very much like a club/managerial problem than a player problem. Well, let's see what happens next, since the season is almost over.