After 26 years in charge at Manchester United, Sir Alex Ferguson has decided to call it a day.
Ferguson will be remembered as one of the best club managers of all time but is he the best.
With a little bit of research we can reveal the top 10 Premier League managers of all time based on win percentage.
10. Kenny Dalglish - Win Percentage - 48%
The Liverpool legend started his managerial career at Anfield in a player-manager role which lasted six seasons before he retired in 1991 after collecting 10 trophies in six years.
Dalglish then went on to manage Blackburn Rovers with whom he won the Premier League in 1994. In 1997, Dalglish was appointed Newcastle United Manager where he spent one season before being sacked after a run of unsuccessful results. Kenny's final two managerial roles were with celtic (where he picked up the scottish league cup) and finally Liverpool in the 2011-12 season.
9. Andre Villas-Boas - Win Percentage - 52%
AVB had worked with legends such as Sir Bobby Robson and Jose Mourinho before he had gained his first big time managerial status.
Villas-Boas left his assistant manager role at Porto alongside then manager Mourinho, in the direction of Academica where he was awarded his first managerial job.
He took the club from bottom of the division with no wins, to an 11th place finish and ten points clear of the relegation zone. In June 2010, Andre Villas-Boas made his return to FC.Porto. After just two months at the job, he won his first trophy, the Portuguese Super Cup. Since handing in his resignation at Porto, AVB has managed Chelsea and is currently working at Tottenham.
8. Claudio Ranieri - Win Percentage - 52%
Claudio Ranieri first burst on to the managerial scene in 1986 with his firs role at Lametini. However, it was 14 years later when he was appointed manager of Chelsea that he caught everybody's eye.
Although Ranieri did not win any trophies with the Blues, he was making a name for himself in England as throughout his 199 game career with Chelsea, he won 107 of those and has since went on to manage Valencia, Juventus and is currently head coach at Monaco.
7. Rafael Benitez - Win Percentage - 55%
Benitez was awarded his first role as manager at Real Madrid B. Benitez caught the attention of Liverpool in 2004 after he resigned as Valencia manager.
He moved to Liverpool where he won four trophies in all before moving to Internazionale in 2010. Since then he has made his return to English football as interim manager of Chelsea in 2012.
6. Luiz Felipe Scolari - Win Percentage - 56%
Scolari was awarded his first job in England in July 2008 when he was appointed head coach at Chelsea. He became the first World Cup winning manager to manage in the Premier League after he won the cup with Brazil six years earlier.
Despite a relatively successful first season, the Brazilian was sacked in before the end of it in February 2009 after a poor run of games.
5. Arsene Wenger - Win Percentage - 58%
Arsene Wenger has been head coach of Arsenal for 17 years and in that time has racked up 11 trophies will the north-London club in that time.
The first two of which came in his second season when his side won both the Premier League and the FA Cup. Although Arsenal are not known for winning trophies in the more recent years, the Gunners won their last Premier League title in the 2003-2004 season whilst going all 38 games without a defeat and that sort of success has to go down to the manager.
4. Roberto Mancini - Win Percentage - 62%
Roberto Mancini was appointed manager of Manchester City in 2009 following the sacking of Mark Hughes. He signed a three-and-a-half-year deal with the blue side of Manchester and since then has reached his goal of winning the Premier League title in the 2011-2012 season.
3. Carlo Ancelotti - Win Percentage - 63%
Carlo Ancelotti replaced Guus Hiddink as the head coach of Chelsea FC in June 2009. Just two months after his appointment, Ancelotti gained his first honour in England when his side overcame Sir Alex Ferguson's Manchester United in the community shield final after a 2-2 draw lead to penalties.
On the 9th May 2010, the Italian led the Blues to premier League victory and only six days later, they were awarded the FA Cup after beating Portsmouth 1-0 in the final. Unfortunately, this type of form didn't show in the 2010-2011 season and Ancelotti was sacked less than two hours after a defeat to the hands of Everton.
2. Sir Alex Ferguson - Win Percentage - 65%
Surprisingly, Fergie (based on win percentage) is not the best manager in Premier League history although some would beg to differ. It is well documented that in a career lasting no less than 39 years, Ferguson has become one of the most respected and successful managers of all time. The Scotsman's first (and only) Premier League role was at Manchester United when he replaced Ron Atkinson in 1986. The Red Devils were awarded their first league title under Feguson in the 1992-1993 season and since then have showed no sign of stopping.
All in all, Sir Alex has won five FA Cups, four League Cups, 10 Community Shields, two UEFA Champions League trophies, one UEFA Super Cup, one Intercontinental Cup,one FIFA Club World Cup and 13 Premier League titles all with Manchester United. However, he did not have the best win percentage.
1. Jose Mourinho - Win Percentage - 71%
Jose Mourinho ( AKA, "The Special One") has the best Win Percentage in Premier League history with a staggering 71% win rate. He is also the 6th Chelsea manager featured in the top ten.
Mourinho joined Chelsea from Porto in 2004 and brought with him several staff from his previous days at Porto which included future Chelsea manager, Andre Villas Boas who at the time was Mourinho's head scout.
The Italian led his side to back-to-back Premier League titles in the 2004-2005 and 2005-2006 seasons and along the way picked up one Community Shield and one League Cup.
The following season, Jose's side conceded the Premier League title after a goalless draw at the Emirates, which led Manchester United to victory. In his final season at Stamford Bridge, Chelsea picked up the FA Cup and the League Cup for the second time before he left the club in September 2007. The Italian still has the best win record the Premier League has ever seen.
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