Bolton have parted company with manager Sammy Lee "by mutual consent" after Wanderers' disappointing start to the season.
The Lancashire club have taken just five points from their first nine Barclays Premier League games, with only goal difference keeping them off the bottom of the table.
Lee succeeded Sam Allardyce as manager at the Reebok Stadium towards the end of last season, with the latter later joining Newcastle.
General manager Frank McParland has also left the club.
Chairman Phil Gartside told the club's official website, www.bwfc.co.uk: "This has been a difficult decision for all parties but we have agreed that the time is right.
"Sammy has played an important role in the club's recent history. We wish Sammy and Frank well for the future.
"Our efforts will now be to look for a replacement manager and to concentrate on the future."
Lee took over from 'Big' Sam Allardyce last season who resigned after seven-and-a-half years in charge.
Earlier this month he relieved veteran midfielder Gary Speed of his coaching duties, saying: "I would like him to focus on his game at this moment."
Sammy Lee Factfile
1959: Born February 7th in Liverpool.
1978: Makes first-team debut for Liverpool, scoring in a 3-2 win over Leicester.
1982: November — Scores on senior England debut in a 3-0 win against Greece in Salonika. Wins 14 senior caps in all, the last coming in 1984 against Chile.
1986: Leaves Liverpool for QPR, having won three league titles, two European Cups and four League Cups in his eight years in the Reds first team.
Lee has further spells with Spanish side Osasuna, Southampton and Bolton.
1993: Begins his coaching career as reserve-team boss at Liverpool under former Reds team-mate Graeme Souness.
1999: Appointed first-team coach by new Liverpool manager Gerard Houllier.
2001:Joins Sven-Goran Eriksson's England coaching staff, while helping Liverpool to a UEFA Cup, FA Cup and League Cup treble.
2005: June— Moves back into club football by becoming Sam Allardyce's assistant manager at Bolton following the departure of previous number two Phil Brown to Derby.
2006: August— Offered the full-time England Under-21 coaching job by new senior manager Steve McClaren, but declines in order to concentrate on his role at Bolton.
November— Takes temporary charge of the under-21 team for a friendly against Holland with Peter Taylor unavailable for the match due to club commitments.
2007: April 30— Appointed Bolton manager in succession to Sam Allardyce, who resigned the previous day after seven-and-a-half years in charge.
October 7— Bolton remain 19th in the Premier League after a 1-0 home defeat by Chelsea leaves them with a solitary win from the opening nine matches.
October 11— Gary Speed, left out of the squad for the Chelsea match, is relieved of his coaching duties with Lee saying: "I would like him to focus on his game at this moment".
October 17— Bolton part company with Lee "by mutual consent", according to the club's official website.
