Coach Miguel Llera admitted he was disappointed with his side’s performance in their 3-0 defeat at home to Grimsby Town at the weekend.
He said: “In general, for the team, we have to try and take on board what we have been implementing in the last four/five weeks since the new manager came along.
“We having been trying new things and I was disappointed with the performance, but now I am looking forward to the next game.
“The most positive thing was the younger players, who had a good impact on the game. Jacob Barrass and Oliver (Papworth) both came on and did very well.
“I think that the most important thing is to bring the younger players into the group and they are doing very well.
“If a younger player is good enough to make their debut with us then we have to keep an open mind to let them play because they are the future.
“We have to be fair with the players. If they are doing well then they deserve to be with us.
“More than the result we are looking for the individual performance of the player. At the end of the day we are looking for players to get a professional contract.
“In the academy, we look to get players into the first team and obviously everybody wants to win and we do try to win but now we are focusing on developing players.
Llera spoke about the importance of adapting to the new ideas introduced by recently appointed academy manager John Pemberton.
“He is trying to implement new ideas and what the kids have to do as quick as they can is adapt to his methodology.
“It’s had a big impact on the lads so far. He brings new ideas and he has massive experience in the previous role he had and we are trying to adapt to the new ideas.
“Maybe it’s costing us a bit more time because he wants to play quicker and it's more demanding, both physically and technically."
The Spaniard says that the youngsters are looking to emulate Levi Amantchi, who has now made a handful of first-team appearances.
Llera said: “All of them are looking to follow his pathway and this is what we are trying to do. We want to get as many players as we can into the first team and if they are good enough, they deserve it.”
Chesterfield: Wharton, Howard, Gibson, Sharman, Wild, Render, Bradbury, Walker, Rawson, Holmes, Smith
Substitutes: England, Emery, Barrass, Fuertado, Papworth