It's never a good sign for a manager when his most high-profile players begin to talk openly about a need for improvement, so for Ole Gunnar Solskjaer at Manchester United, there can be no positive spin about Paul Pogba following Bruno Fernandes by publicly calling for things to change at Old Trafford.
Of course, Solskjaer this week will likely trot out the usual damage-limitation tactic with comments about players showing how much they care when they vent their frustrations, but he will have been in enough dressing rooms during his playing career to read between the lines when it comes to players questioning tactics or mentality.