Mick Beale insists QPR striker Sinclair Armstrong must be given time to develop into a first-team regular.
Beale, who took over as R’s boss during the summer, having previously coached youngsters at Chelsea and Liverpool, has been keen to give Armstrong, 19, a chance in the side.
Speaking after Saturday’s game, Beale said: “Some people have got to read the signs I was throwing out over the last few weeks.
“He’s a young boy and 21 days ago he made his debut. People are calling for him to start. Physically he looked tired from the excursions of Tuesday (against Blackpool).
“There are areas of his game that need to pick up. What he’s not lacking is natural enthusiasm, pace and power.
“But you’ve got to trust us behind the scenes. It’s been my job for 20 years to develop players to go on. I’ve seen a lot of players.
“Sinclair will do really well – if everyone just gives him time and patience.”
Dubliner Armstrong, signed from Shamrock Rovers last year, had spells on loan at non-League clubs Torquay and Aldershot last season.
He has looked hugely exciting in his appearances as a substitute for Rangers this season.
But Beale warned: “You have to be mindful that his whole world has changed in three weeks.
“He’s a boy that came over from Ireland a year ago, been on two loans and not spent much time in our club.
“I came in and we decided to keep him here even though we had numerous loan offers.
“He’ll have a really good season – if people just stay off him a minute. Just be careful.
“Sinclair’s doing fine at the moment. He beats himself up because he rides the waves of highs and lows. He’s not the only one who missed an opportunity (against Rotherham).
“The furore around him; we’ll bring him on at the speed that he shows us. We’re not going to rush this young man.”