The individual flair philosophy works for 1 or 2 members of the team, not 10 of them
The majority of the team needs to perform as a well oiled unit and united are just not doing that. That is part tactics and part team selection, both of which are the responsibility of the manager. You just can't have a player in the team where he mows down a player within 15 mins of coming on and gets sent off, His skill level doesn't enter into it if he cant perform at the same level week in week out. United have a great team if they throw the dice and it works one week, but it won't happen the next week.
The manager bought and picked this team, it's his responsibility. He has to go