The role of the manager is arguably the most important in a football club and if things go wrong at a club, it is mostly the manager who has to bear the brunt of the criticism. When things are not going well for a manager, his tactics, transfers and all his decisions are questioned by the club's supporters and there have been many occasions where managers have not been able to handle the pressure and have resigned from their posts.
In every Premier League season, there is a good probability that some will be sacked by the end of the season and many under-performing managers come under severe criticism from their supporters. Also, some under-performing managers will inevitably be compared to the worst ever managers in the Premiership and for this season, the early contender is Steve Kean, who has a low winning percentage and does not inspire confidence in the Blackburn supporters.
In the previous season, it was debatable as to whether Avram Grant would make the list of worst Premiership managers ever. Here is a list of 20 of the worst managers to have managed in the Premiership, though some have performed quite well outside of the Premiership.