Billy Barr felt his side failed to show that cutting edge in the final third as they went out of the FA Youth Cup on penalties to Aston Villa.
Nothing could separate the two sides after 120 minutes of football at Ewood Park, but it was Villa who triumphed from the resulting penalty shootout.
Under-18s lead coach Barr believed there were harsh lessons to learn from the defeat, something the young footballers have understand if they want to have a career in the game.
"I'm disappointed for the lads obviously," said Barr.
"On the night I don't think either team was good enough to open the opposition up. I thought we dominated possession-wise, but that final third was a problem. We wanted more from open play.
"The stuff that we had worked on in the last couple of days we didn't seem to get right. Then obviously when it goes to penalties anybody can win.
"There's a few of them in tears in the dressing room and the manager has been in as well and the message we are giving them is as long as they can learn from nights like this, it is about the development of young footballers. Some of them come out of it with credit even in defeat.
"The effort was there, but it is the quality that goes with the effort and that is what was lacking tonight."
The Under-18s are back in action on Saturday 21st January when they play West Bromwich Albion at Brockhall.