Well, to me I see everything wrong with that result. I know preseason games is all about preparation and testing of tactics. it’s not about winning actually but an avenue for clubs to test their tactics and style of play to know which one works better. Unfortunately, Manchester United lost the match and there was no single tactical move displayed by United.
I don’t know what will happen if season starts but Manchester United have no style of play aside passing at the back and long passes with lose possession. Manchester did not only lose this game, they had just a shot on target for the whole of 90 minutes. This is the right time to criticize their poor tactics and not until season starts.
Before you start criticizing, look at the lineup Manchester United played. Apart from Rashford and Casemiro, I don’t see who could stand up to Rosenborg. This is a friendly match in which the coach wants to see what the young players are capable of, the result in such matches is of secondary importance. Now, probably after the Euro, the players will receive a short vacation after which preparations for the new season will begin, then it will be possible to evaluate the team’s results.