When it comes to Manchester united what one can only do is to be optimistic about their performance because we all know how they have been struggling when it comes to clean and consistent play, for their coach ten hag I really don't know the statics he will devised into because I believe the one he used is his one playing pattern and it didn't just work well with the team although this time around he has recruited some new players and new forces so maybe that would be an edge for him to succeed this season.
Mostly people who feel optimistic with Man United are their fans. People who aren't Man United fans, probably won't feel very optimistic with Man United performance in Europa league although Man United still can be categorized as a big team. The reason is clear, Man United never played consistently, they also often made bad mistakes during the match. I don't know what Ten Hag will do with the current squad of Man United. Although we have some new players, it still depends on the strategy or tactic applied by Ten Hag.