Holding aloft that red Manchester United shirt, two weeks back, Jose Mourinho proffered a somewhat waxy smile.

But smile he did, just as was the case from inside the glazed isolation room he and legal representatives occupied at the Croydon Employment Tribunal, on settling his and his former employer's case with Dr Eva Carneiro on Tuesday.

In the eyes of some, anyone of a blue hue who demurs from the infallibility of The Special One is an enemy of the state.

Mourinho, in some camps, still holds North Korean levels of unquestioning loyalty; and those who stand up to suggest he might not be perfect are immediately dispatched to some metaphorical gulag.

But we've seen a lot in recent days to question the purity of his motives, the temperament of his character, and even – yes even – his ability as a manager.

I've been lucky enough to deal quite a lot with Mourinho, on a personal level, over the last decade

And, when he is good, he's very very good.

I will happily sing his praises: he is engaging company, with a sharp wit, and has a smile that can achieve almost anything he wants.

Jose Mourinho's Chelsea career in pictures:

He has an incredibly high-level emotional intelligence, which means he is able to asses any group of people in front of him – be they footballers, journalists, or board members – and communicate ideas in a way that is incredibly infectious.

Plus he can do all that in about six different languages.

And, by the way, he is also one of the greatest football managers in the history of the game.

But, and here is the bit where his personal fan club will take issue: when he's bad he is horrid. Really horrid.

When the mood does not take Mourinho , he will be blunt, uncommunicative, a bully, and generally unpleasant.

To a certain extent, that division in character is a trait that applies to many of us; but the degree to which he can go the other way, with seemingly no consideration for the outcome on others, is bordering on the sociopathic.

Just as we have seen this week, with the settlement of Dr Carneiro's case against Mourinho and Chelsea.

Jose Mourinho the manager of Manchester United looks on during the Soccer Aid 2016 match in aid of UNICEF at Old Trafford on June 5, 2016 in Manchester, England. (Photo by Alex Livesey/Getty Images)
New home: Jose Mourinho the manager of Manchester United

Here we had a case of a professional who everyone agrees was doing her job, roundly castigated in front of 40,000 people.

Then, with the coming of his following press conference: no words of apology, timid mutterings that dialogue flows in the heat of the moment and all is now fine.

No – a meandering rant questioning the professional integrity of the individual involved.

Many of his blind defenders stick to the insistence that he was right, because the medical team's incursion in that game against Swansea cost Chelsea a competitive advantage.

But that quite deliberately avoids the underlying issue that, as a medic, an oath has been taken to place the wellbeing of the patient first: and both the patient (Eden Hazard) and his guardian (in this case, referee Michael Oliver) were calling for medical intervention.

Dr Carneiro was right – there are no ifs, no buts here. The statement issued by Chelsea Football Club in settlement of the case put it out there in black and white.

Watch: Mourinho and Chelsea settle with ex-team doctor Eva Carneiro

Video thumbnail, Mourinho and Chelsea settle with ex-team doctor Eva Carneiro
Video Loading

But still Mourinho seems to refuse to accept this. And still his fans follow him in that position.

However, whether or not you care about professional harmony, respect for the individual, a workplace where equality matters (and frankly in 2016, if you don't, then you deserve the legal fees and settlements it is going to cost you), then there is a more salient, footballing issue.

When Mourinho enters into that dark recess of his personality, a place from which he has rarely exited since roughly last May, results suffer.

And this is the single biggest counter argument to those that seek to deify him: good managers manage all the time; bad managers fail when it suits them.

Mourinho has gone.

But he has left behind some of his traits: in the form of acolytes who continue that bullying and unpleasantness, in defence of his cult of personality, via the various channels used by fans.

Use social media or a web forum to in anyway question his divine supremacy, and it won't be long before the mob appears.

In writing this, I am fully aware that response will follow.

Surveying the empire: New Chelsea manager Antonio Conte

Football is a game of passion, and debate, and strongly-held opinions: and it is richer for it.

But for the club to move on from its present situation, for Antonio Conte to have any chance of success as its leader, there needs to be a considered and widely held understanding of what has just happened.

Mourinho is not perfect; he has acted utterly scurrilously at points this season; and that behaviour did, to a significant extent, bring about his own downfall.

When Frank Lampard, a character who could not be more different from Mourinho, and who maintains a genuine unquestioning love for many aspects of the club, returned to face the Blues with Manchester City, his ex-boss had words for him.

“When he decided to go to a direct competitor to Chelsea then love stories are over,” said Mourinho.

And, with that, he wrote his own epitaph.

Take our Mourinho quiz and test your knowledge of the Special One:

Question -1 of 10 Score -0 of 0
In which year did Jose Mourinho first take charge of Chelsea?