Who is the greatest manager of all time?

Chelsea central defender and Real Madrid target Ricardo Carvalho has stated his desire to join up with former-boss Jose Mourinho at the Santiago Bernabeu. Carvalho also described Mourinho as the "greatest manager in the history of football". This got me thinking. Who is the greatest manager ever?

Below are the four men I consider to be among the best of the best in football management, and now it's your chance to vote for your favourite. The poll will be closed when votes stop coming in, and the winner will have the honour of being named Article 2010's greatest ever manager!

(If you vote for 'none of the above', please state your own choice in the comment box).

Who is the greatest manager of all time? Jose Mourinho Sir Alex Ferguson Sir Alf Ramsey Brian Clough None of the above View results

(If preferred, you can vote at wdkf.co.uk)