Chris Ramsey became the second Championship managerial casualty of the day on Wednesday night as QPR sacked him and put Neil Warnock in temporary charge.
Following on from Chris Powell's departure from Huddersfield, 53-year-old Ramsey paid the price for Rangers' poor season so far.
Relegated from the Premier League in May, the Hoops sit 13th in the second tier - a poor return given they were amongst the favourites for promotion.
Warnock - boss at Loftus Road between 2010 and 2012 when the club won the Championship title - is now in temporary charge and could, if given the job permanently, chase an eighth promotion as a boss.
Tuesday's 1-0 loss at Derby - a second in a row and a fourth successive defeat on the road - proved to be the undoing of Ramsey, who won nine of his 32 games in charge after replacing Harry Redknapp during the unravelling of Rangers' Premier League status.
"We've made this decision in the best interests of the football club," said QPR director of football Les Ferdinand.
"It's no secret that we expected to sell some key players in the summer transfer window, and as such, our target at the start of the season reflected that.
"However, keeping these players at the club has seen the mandate change, owing to what we believe this squad is capable of.
"We're all desperately disappointed it hasn't worked out with Chris. He has had to deal with this shift in expectation and has worked incredibly hard in doing so."
Rangers added that the search for a replacement would immediately begin but that Warnock would take over on a temporary basis.
He guided Rangers to the Championship title and Premier League football in 2011 before losing his job under the new regime of Tony Fernandez.
He has since been at Leeds and Crystal Palace, but returned to Loftus Road to work as an advisor to Ramsey last month.
Warnock's first game will come at home to Preston on Saturday.
Source: PA-WIRE
