#2 Negative style of play
Manchester United has always been a club whose foundation is built on eye-catching football. From Sir Matt Busby to Sir Alex Ferguson, everyone believed in the philosophy to entertain the crowd through the performances.
The retirement of Fergie started a new transitional phase at Old Trafford where both David Moyes and Louis Van Gaal failed to succeed. The appointment of Jose Mourinho was a desperate attempt to win trophies more than anything else. The former Chelsea manager is known for his defensive tactics which have paid dividends all these years.
However, the fragile United back line didn't help Jose's cause, and he was reluctant to adapt to a change in philosophy. His pessimistic football against the big sides has drawn immense criticism from the footballing world who cited Mourinho was a man from the past.
His tactics agitated the fans who wanted to see quick passing, high tempo football at Old Trafford.