Keith Millen has left Bristol City with the club bottom of the npower Championship table.
City have won just once in 10 league outings this term, and are without a home victory all season.
The final straw for Millen came at Bloomfield Road on Saturday, where the Robins were thrashed 5-0 by Blackpool, leaving many City fans calling for the manager to be axed.
And this morning the club announced that they had parted ways with the 45-year-old, ending a 12-year association in various capacities.
In a statement, Robins chairman Colin Sexstone praised Millen's work at Ashton Gate and wished him well for the future.
"I'd like to place on record my thanks to Keith for his 12 years of service at the club," said Sexstone.
"He is an outstanding coach and we wish him all the very best for the future."
Millen joined the club in 1999 as a player, making more than 60 appearances before retiring due to a knee injury.
He then took on roles as academy coach and assistant manager under Brian Tinnion before retaining the number two position under Gary Johnson.
Along with Johnson, Millen helped take City to the cusp of the Premier League, only to suffer Championship play-off final heartbreak with defeat to Hull at Wembley in 2008.
Millen twice assumed caretaker control of the club before formally taking on managerial responsibilities in August 2010, when Steve Coppell left Ashton Gate after just four months and two games in the hotseat.