Steve Wigley, Brian Eastick and Tim Flowers have departed Nottingham Forest, reports BBC Radio Nottingham.
Assistant manager Wigley, first-team coach Eastick and goalkeeper coach Flowers are followed out of the door by head of recruitment John Marshall and physio Dave Galley.
Stuart Pearce was replaced by Dougie Freedman on Sunday and chief executive Paul Faulkner resigned on Monday.
It is understood that Freedman met with the staff on Monday afternoon.
Academy manager Gary Brazil, who took charge of the Reds at the end of last season, oversaw training on Monday and Freedman will be officially unveiled at a news conference on Tuesday.