|Team|Outgoing manager|Manner of departure|Date of vacancy|Replaced by|Date of appointment|Position in table|
|---|---|---|---|---|---|---|
|Manchester City|Stuart Pearce|Contract terminated|14 May 2007|Sven-Göran Eriksson|6 July 2007|Pre-season|
|Chelsea|José Mourinho|Mutual consent|20 September 2007|Avram Grant|20 September 2007|5th|
|Bolton Wanderers|Sammy Lee|Mutual consent|17 October 2007|Gary Megson|25 October 2007|19th|
|Tottenham Hotspur|Martin Jol|Contract terminated|25 October 2007|Juande Ramos|27 October 2007|18th|
|Wigan Athletic|Chris Hutchings|Contract terminated|5 November 2007|Steve Bruce|26 November 2007|18th|
|Birmingham City|Steve Bruce|Wigan purchased rights for £3m|19 November 2007|Alex McLeish|28 November 2007|15th|
|Derby County|Billy Davies|Mutual consent|26 November 2007|Paul Jewell|28 November 2007|20th|
|Fulham|Lawrie Sanchez|Contract terminated|21 December 2007|Roy Hodgson|30 December 2007|18th|
|Newcastle United|Sam Allardyce|Mutual consent|9 January 2008|Kevin Keegan|16 January 2008|11th|
|Chelsea|Avram Grant|Contract terminated|24 May 2008|Luiz Felipe Scolari|1 July 2008|Post-season (2nd)|
|Manchester City|Sven-Göran Eriksson|Mutual consent|2 June 2008|Mark Hughes|4 June 2008|Post-season (9th)|
|Blackburn Rovers|Mark Hughes|Manchester City purchased rights for £4.6m|4 June 2008|Paul Ince|22 June 2008|Post-season (7th)|

Question: avram grant was with chelsea for at least how many years?
Answer: 1