Here are five managers who were unjustifiably shown the door :

What do you do with a manager who has won a couple of league titles and Champions League crowns in four years? Well, Real Madrid and their president Florentino Perez decided the best reward would be to sack the man who had turned Madrid into world beaters for the first time since the 50s.

The following two years were identical to the previous ones as he won the Champions League yet again and followed it up with yet another League title. But that was not enough to secure his job at the arguably the biggest club in the world. Perez famously said that del Bosque was not the "right coach for the future". Oh, how wrong he was!

Del Bosque then took charge of the Spanish National team, who had not won a major honor since 1964, to two straight Euro successes with the small matter of the nation's first World Cup sandwiched in between.

What do you do when your manager has been able to get just two points from eight games - you justifiably sack him. But that wasn't what happened to Harry Redknapp but rather his predecessor at Tottenham Hotspur Juande Ramos.

In the next season, he managed to break the dominance of the "big 4" and took Spurs to a fourth-place finish, and the Champions League for the first time since the 1961–62 season. They managed to top in a group with Italian Champions Inter Milan, and although they were eventually knocked out by Real Madrid in the quarter-finals, they earned plaudits for their style of play and Redknapp was seen as one of the untouchables in English football. Meanwhile, the European campaign had taken its toll and Spurs finished 5th in the table.

Next season, Tottenham started the campaign terribly with losses against both the Manchester clubs. However, a run of 10 wins and a draw in the next 11 games saw them reach the 3rd spot on the table and there were talks of them giving the Manchester clubs a fight for the title.

Jupp Heynckes - 1998

In 1997, Jupp Heynckes was appointed as the manager at the expense of Fabio Capello, who was sacked despite winning the league and bringing in the likes of Roberto Carlos and Clarence Seedorf. Capello was told that his Champions League failure was the reason for his sacking. Heynckes had won two titles with Bayern Munich in the late 80s and was not seen by most as the man who would last the most coveted job in the world. 

He started off by winning the Supercopa de Espana against Barcelona but had a tough start to the league campaign. However, he recovered and by gameweek 13 they were sitting atop of the league table. In the Champions League, they managed to qualify for the knock-out rounds by topping a group consisting Porto, Olympiacos, and Rosenborg. In the league, they flirted with top spot for quite a while but eventually dropped off in the title race to Barcelona. 

Ironically, Heynckes was shown the door after just a year and was told that a lack of domestic success was the reason for the sack. After travelling all around Europe, Heynckes eventually guided Bayern Munich, who had not won the Champions League in over a decade to a treble - a feat Real are still to achieve.

Brian Clough - 1973, 1974

If you have ever been sacked in your life, just remember the name, Brian Clough. Before the Leicester story there was Derby County. Clough, one of the greatest managers in the game, in 1969, took Derby County -  a club that had not been in the top division since 1953 - back to the top division of English football. A couple of years later, he won the league - the first for Derby in their 88-year history. The following year, he made it all the way to the semi-finals of the European Cup where a physically tough Juventus knocked them out. 

Clough was obsessed with proving that he was the best manager in Europe and could prove that only by winning the biggest competition of them all. This led to a strained relationship with chairman Sam Longson. By 1973, tensions had grown to such a level that Clough and Taylor resigned amidst rumors that he was actually sacked. The result was a widespread display of discontent by the Derby fans, who demanded that Clough be reinstated and the Board be relieved of their duties. None of that came to pass and eventually, Clough ended up getting the Leeds job vacated by the legendary Don Revie.

Carlo Ancelotti - 2011, 2015

In his very first season, he did a league and cup double as he snatched the title from Manchester United's grasp. Chelsea, under Mourinho, was built as a team that would snuff out games through their defensive abilities. Under Ancelotti, however, the world saw another side of Chelsea that was not just effective but extremely entertaining as well. They scored a record 102 goals in an astonishing campaign.

Ancelotti started the second season similarly winning the first two games 6-0. Chelsea went on to win six out of the next eight games to lead the table, however, over the next eleven games, they were able to win just two matches. But after their exit from the Champions League, at the hands of eventual Champions Inter Milan, they made a comeback. Having been 15 points behind United they came to within three before a loss at Old Trafford confirmed United as Champions.

He went on to win the Club World Cup the following year but they were knocked out of the Champions League in the semi-final by their bogey team Juventus. Real finished 9 points behind Barcelona in the title race but most people expected the man who delivered the Decima to see out his contract - that had one year left on it. When he was sacked, it turned quite a few heads but not as many as when Real approached Rafa Benitez to replace the three-time Champions League winner.