From where to play Wayne Rooney to if he wants to play Ander Herrera at all, Louis van Gaal does not seem to know his best eleven at the minute and it is causing United problems.
Angel Di Maria could well miss out after being winched off at half time in their home game against Sunderland and the players simply cannot develop enough of a relationship with each other.
Never has that been more evident than when looking at the United back four and John Carver will have told his players to capitalise on any uncertainty or mistakes. One thing the Magpies will hope is that Juan Mata remains benched given he has scored three goals in his last three visits to St James Park.