Gareth Ainsworth says his QPR squad are "very damaged and quite fragile" as they continue their battle to avoid relegation from the Sky Bet Championship.
The west London club were top of the league on October 22, but have won just two of their last 26 league games and taken 13 points from the 78 on offer during that time.
Ainsworth is their third manager of the season - after Michael Beale and Neil Critchley - and, having lost seven of his nine games in charge, they currently sit 20th, just one point outside the relegation zone with four games to play.
Speaking ahead of Wednesday's visit of Norwich, which is live on Sky Sports Football Red Button, Ainsworth hinted at long-standing issues being at the root of the club's troubles.
He said: "I've always said I knew what I was coming into. I spoke to a lot of people about the place and it was a huge challenge. It's still a huge challenge. I can't go into too much detail, but it's (happened) over a period of time (why this club is) where it has ended up and there's lots to do.
"I want to make sure we do it and we do it as a Championship club. A lot of changes need to be made. It doesn't just happen overnight, these players have been the same players all season. We've got to address this, but again, it's my job to do that, but also keep things in house.
"It's my job to put that (hunger) into these players. It's there, it's just getting it out sometimes and that has been the tough ask this season
