Ritchie Humphreys praised the attitude of his reserve-team charges following an improved second-half display in a 2-2 draw at Grimsby Town on Wednesday afternoon.Curtis Morrison and Jordan Slew scored as the Spireites came from behind at the break to take the lead, only to see the home side equalise.
Rai Simons had Chesterfield's best chance in the first half when he attempted to round Andy Warrington, but the veteran keeper managed to claim the ball at his feet.
It was a disappointing first 45 minutes for the Spireites, who went behind four minutes before the interval when Pittman scored, beating Aaron Chapman with a shot from inside the area.
Morrison came on as a 63rd minute replacement for Simons and the striker equalised just a minute later with a shot from 12 yards.
Slew forced a good save from Warrington before putting Chesterfield in front on 70 minutes after intercepting a loose ball and producing a calm finish.
Marshall (76) levelled with a diving header to ensure that the match finished all-square.
Reflecting on his team's performance, Humphreys said: "It was disappointing before the break and we struggled to deal with the difficult conditions, but we were a lot better in the second half.
"It was disappointing to concede a second goal, as I thought we could go on to win, but I was delighted with the attitude of the players. We have a group of young players who are still learning and I thought they did well once they got to grips with the conditions."
Starting line-up: Chapman, Hudson, Donohue, Humphreys, Marshall, Maguire, Herd, Orwell, Daly, Simons, Slew.