Bradford Bulls head coach Mick Potter has been made redundant by the club's administrator Brendan Guilfoyle.
Potter guided Bradford to a remarkable 30-22 win over leaders Wigan last Friday, although the match will be his last game in charge.
The former St Helens coach was one of 16 redundancies made on Monday after part of the club's quest to avoid liquidation.
Coaches Francis Cummings, Lee St Hilaire, Stu Barrow and Paul Medley have been sacked, along with chief executive Ryan Duckett and press officer Stuart Duffy.
"This is an attempt to reduce our cash requirements," stated Guilfoyle.
Guilfoyle says the club still intend to fulfil Sunday's Stobart Super League home game against London Broncos and he was due to meet the Rugby Football League on Monday afternoon to seek assistance.
Bradford's teenage second-row forward John Bateman has been quick to voice his displeasure at the crisis engulfing the Bulls.
"What has the coaching staff done to lose their jobs? People suffering for other people's mistakes! What a joke this is becoming!" Bateman wrote on his twitter account.
The Bulls went into administration after the club's directors failed to raise the £1.2million they say was needed to see them through to the end of the season.
Bradford owed around £300,000 to the HM Revenue & Customs, who were poised to issue a winding-up petition.
"In the month of July I will need around a quarter of a million pounds to keep the club going and I've got £20,000 maximum in the bank," Guilfoyle continued.
"I have made 16 redundancies, including Mick Potter and three coaches. I am looking at fulfilling Sunday's fixture.
"The players have been asked to report back for work at 10 o'clock in the morning and I am going to see the RFL this afternoon to seek their assistance."
The RFL say they were not given advance notice of Monday's shock development.
In a statement, the governing body said: "The RFL is concerned by the news that the official administrator of Bradford Bulls has made all the club's non-playing staff redundant.
"The governing body received no official notification of this action and is meeting the administrator Brendan Guilfoyle this afternoon to seek an explanation and clarification.
"The RFL is continuing to establish the facts behind this development and will not be making any further comment until we have spoken to all the parties involved."