It doesn’t take a football obsessive to know management is a cut-throat line of work.
Life in the dugout comes with a great deal of pressure, which escalates to extreme levels at the elite tier of the sport.
Many of the best clubs in the world demand success year after year and ending the season without a major trophy is deemed a sackable offence.
In England, Chelsea are an infamously trigger-happy bunch when it comes to hiring and firing managers, with Antonio Conte being their ninth different boss since 2007.
Carlo Ancelotti was a particularly unfortunate victim of the ruthless Stamford Bridge hierarchy having lost his job 12 months after securing a Premier League - FA Cup double in his first term.
The Italian also fell short of sky-high expectations at his last post at Bayern Munich, where he was shown the door nine matches into the 2017-18 campaign.
Despite waltzing to the Bundesliga title by 15 points the season prior, Ancelotti is thought to have been removed due to his questionable training methods as much as his poor results.
If what his former players say about his approach means anything, the 58-year-old’s authority in the Bayern dressing room must have hit rock-bottom near the end of his tenure.
Last week Arjen Robben claimed his son’s youth team had a better training regime than Ancelotti, making him the third Bayern figure to comment on the matter.
Jupp Heynckes has since taken over on a permanent basis from caretaker boss Willy Sagnol, prompting yet another dig at his predecessor.
THOMAS MULLER TAKES AIM
Thomas Muller has delivered one of the most stinging blows yet by comparing the current state of the squad to when Ancelotti was in charge.
"We will have a good training again,” the striker said following Germany’s 5-1 victory over Azerbaijan on Sunday, per the Sun.
"Heynckes is the right man because he can inspire the team to have the ability to suffer more, to have more commitment and a better defensive set-up.
"Heynckes will work with interest and passion. There are several screws that need to be turned.
"The team have some responsibilities to carry out.”
Ancelotti – a three-time Champions League winner – shouldn’t have too many issues finding another job should he so desire.
However, there’s no question his falling out with the Bundesliga champions has potentially damaged his otherwise glittering reputation.