4) Jose Mourinho (Real Madrid and Chelsea)
Few managers have touched a nerve at their respective clubs as much as Jose Mourinho did. The Portuguese manager has always won titles wherever he has managed but his exits from these hallowed institutions have almost always come in a poisonous atmosphere created by nothing but his own doing.
Real Madrid was arguably the biggest job he undertook in his career and he was chosen for one sole reason - defeat an all-conquering Barcelona side managed by Pep Guardiola. He, too, took it with both hands, more so because he was rejected for the Barcelona job himself in 2009.
Also read: Why such an intense rivalry exists between Jose Mourinho and Pep Guardiola
El Clasico reached a new level of hostility when Mourinho was in Madrid and this spilt over into the Spanish national team who were World Cup and Euro champions. When Iker Casillas tried to calm things down, Mourinho accused the club legend of stabbing him in the back and this did not sit too well with senior members of the squad.
He had also publicly reprimanded the likes of Cristiano Ronaldo and Karim Benzema. By the end of his tenure, he hadn't won the elusive Decima (10th Champions League crown) and looked nowhere close to toppling Barcelona as the number one side, amicably agreeing to an exit in 2013.
Soon after, he took the Chelsea job and it all looked well at Stamford Bridge as he won the league title yet again in his second season. But suddenly things started to unravel yet again. A poor pre-season led to an abysmal start and Chelsea were struggling to get points.
Falling out with club physio Eva Carneiro, who he insulted in front of his own players, shocked everyone at the club and soon the players also stopped responding to him. The Blues slumped and the defending champions were soon in the bottom half of the table, closer to the relegation zone than the top four.
Also read: Why Jose Mourinho is to blame in the Eva Carneiro fallout at Chelsea
He was sacked for a second time in his career in December with the club’s technical director, Michael Emenalo saying: "There obviously seemed to be a palpable discord between manager and players and we feel it was time to act. The owner is forced to make what was a very tough decision for the good of the club."
Stars such as Eden Hazard, Diego Costa and even Cesc Fabregas were branded as rats by the Chelsea supporters who booed the team during the first fixture after his sacking.