For those of us who have seen a succession of Manchester United managers unravel over the last decade, the tell-tale signs are not hard to spot.
David Moyes and Ole Gunnar Solskjaer had gone significantly greyer on top by the time they left the job. Ralf Rangnick gave the players a day off and was then surprised to turn up for work at an empty training ground.
Who can forget Jose Mourinho’s ‘respect, respect, respect’ rant early in his final season at Old Trafford?
And Louis van Gaal flounced off in the middle of a press conference at Christmas after sarcastically telling reporters to enjoy the wine and mince pies United had laid on for us.