#2 Counter attacking Football
Solskjaer knew that Reading would be compact against United and as such, he set his team up to be fast and efficient. He relied on his speedy players to mount a counter on every opportunity and it was one of the main reasons why United won the game.
The speed of Sanchez and Lukaku on the counter was frightening, even though they lacked full fitness. Young and Dalot gave interesting options on every counter and the midfield trio, as well as Mata, had a lot of options while extending the game. While they were not as effective as they would have like to be, both of United's goals scored in the first half were carved out of fast counter-attacks.
Fred and McTominay also joined their forwards on every occasion, trying to build up the numbers on the counter. It is this preference of the Norwegian to play fast, fluid football that won United the game.