The West London club were relegated from the Premier League this season and manager Redknapp is well aware that things must change at Loftus Road if the R’s want to again experience life in the top flight.
"There are lots of changes needed in the summer if we are going to make a challenge next year that's for sure," Redknapp told Sky Sports after the 1-0 loss to Liverpool on Sunday.
"It is no good saying we are a great team - you don't finish bottom if you are a great team. We have been short all season, short of that little bit of quality that is needed.
"I have got to get a squad together, a group together that are going to do it week-in, week-out to try and get us out of the league.
"It will be difficult, but we will have a go next year."
He added: "It's a big challenge. We will have to see what we can do over the summer.
"I want to come back with a team that you don't have too many problems off the pitch with. I want people who want to come in on time, who work hard, train hard, that is all I am asking.
"I am too old to have aggravation every day of my life with players so I have got to change things around next year.
"There has been too much of that this year and it's not enjoyable so unless I change it around I will have to look and see where we go."