Peterborough have parted company with boss Darren Ferguson after their 3-0 defeat to MK Dons on Saturday.
Ferguson, son of former Manchester United manager Sir Alex, has seen his side win just one of their last five matches and they currently sit in 15th place in League One.
The 43-year-old had been back with Posh for a second spell since 2011 but left the club on Saturday evening along with coaches Gary Breen, Gavin Strachan, Jimmy Walker, Stewart England and Marc Lindsey.
A statement by chairman Darragh MacAnthony read: "It saddens me to say that the club has this evening parted ways with one of the finest managers in our clubs history.
"After speaking with Darren, he feels that a new challenge is needed for both himself and the football club.
"I'm personally very disappointed in our current league position, the performances from our playing squad and the fact that we have dropped way below our own standards that we set out at as a football club.
"It has not been our finest six months results wise or performance wise as a football team and my remit is to now go out and find a new football manager and coaching staff that will challenge and inspire these players to greater heights and to start fulfilling their potential individually and collectively."
Academy manager Dave Robertson has been put in temporary charge.