John Eustace warned that QPR must get their recruitment right this summer following the 11th home league defeat of a miserable season.
Rangers were beaten 1-0 by Nottingham Forest at Loftus Road, where Nahki Wells had a late penalty saved.
Eustace, placed in caretaker charge following last month’s sacking of Steve McClaren said: “That game summed our season up. We haven’t been clinical enough.
“It’s something that we need to get right in the summer and recruit players who are winners and want to put the ball in the net.
“It’s important that we recruit winners – players who aren’t used to losing. I think over the last two or three seasons the standards haven’t been good enough and the recruitment is going to be massive this summer.
“Obviously there’s Financial Fair Play and things like that. We need to recruit hungry players who it means everything to them to win games.”
Eustace gave a full senior debut to Lewis Walker against the club the 20-year-old striker’s father Des made his name with as a player.
But Eustace insisted the youngster’s inclusion had nothing to do with Forest being the opposition.
“Not all. He got the start because we wanted to started him,” Eustace said.
“Going forward, the future of the club is young players and it’s a great experience for him going into next season.
“There were a lot of young players out there fighting for the club and the experience will only stand them in good stead for next year.”