Boss Billy Davies insists Nottingham Forest must become more street-wise if they are to sustain their promotion challenge.
The Scot has been delighted with the football his young side have played this season, transforming themselves from relegation battlers to promotion contenders.
Davies believes they will be even more of a force once they learn how to stand up for each other.
"I still look at this team and see that there is a lot to learn, not just technically speaking in terms of their football ability, but in terms of learning how to handle themselves in certain situations," said Davies.
"This is a young team that doesn't always know how to play the game off the ball. We need to learn not to allow certain things to happen, such as allowing one of our young midfielders in Raddy Majewski to be pulled about and dragged back on to his feet.
"The team I had at Preston would not have suffered the on and off-the-ball professionalism we did at Derby. That would not have happened. There would have immediately been a swarm of Preston players around those Derby players concerned.
"They would have corrected the matter there and then. We had very experienced players and they would not have allowed it. That is something that this team can learn."