Former QPR striker Rodney Marsh feels they must spend big in January to stay up.
Marsh believes Redknapp must bring in at least three new faces in the January transfer window if they are to have any chance of staying in the top flight.
He said: "The display against West Ham was pathetic and embarrassing.
"Owner Tony Fernandes needs to look at the transfer window.
"We will be in trouble at Christmas and Harry Redknapp must add three players who will get the team out of this relegation battle. There needs to be changes.
"I look at players like Leroy Fer. Is he capable of pulling us out of a relegation battle?
"Sandro was brought in to show some fight but isn't. He looks like a red card waiting to happen every time he plays.
"I'm very, very disappointed in QPR and I can't see how they will dig themselves out of this hole. Who can they sign to change the team?
"The only person to show a bit of fight is Joey Barton and he's not playing."
