Damien Johnson was disappointed that his side weren't able to get the goal their play deserved against Aston Villa on Monday night.
Rovers went into their Premier League 2 clash at Ewood Park knowing if they won their final league game of the season it would send them through to a promotion play-off semi-final.
But despite creating a host of gilt-edge chances on the night, particularly in the first half, they came up short in a goalless draw which meant they missed out by a point with a sixth-placed finish.
"Overall we are all feeling a little bit frustrated," Johnson told Rovers PlayerHD.
"We felt the game was there to be won in terms of the chances we created - certainly in the first half with the opportunities we got into.
"In the first half we controlled the game for large parts and created some good moments, getting into wide areas and in behind them, but it was that final ball or finish that has let us down.
"We didn't quite create the same in the second half, but we still had chances if we'd had more quality in there.
"But we couldn't manage to put the ball in the back of the net and that's all that matters when you are trying to win the game - and we had to win the game.
"So we're frustrated and disappointed, we had done really well to put ourselves in this position. We're a young side, with a couple of Academy first years starting and scholars throughout the team.
"We had done really well to get in that position and you just hope they see it through, but I can't fault their effort, attitude and application. It was just that last little bit we were missing."
The development squad play their final game of the 2016/17 season next Tuesday 2nd May when they face Fleetwood Town at Ewood in the semi-final of the Molson Coors Lancashire FA Senior Cup - kick-off 7.00pm.