David Weir was keen to takes the positives from Saturday's stalemate with Colchester United at Bramall Lane.
Harry Maguire cancelled out Freddie Sears's early opener on the stroke of half-time, but Weir was left to rue the decision to disallow what appeared to be a legitimate Lyle Taylor strike in the final minute.
Giving his initial thoughts on the 1-1 draw, the Gaffer remarked: "I thought we should have nicked it to be honest. As the game went on we were the team that was pressing.
"It was quite open towards the end and although Colchester will think they could have won it themselves, I think it was us that finished on the front foot. We really pushed on for the winner and but for that offside flag we would have won it.
"There are many positive from this performance though, most of all the five U21s that started the game. I was encouraged by what they contributed and experienced players like Tony McMahon, Neill Collins and Michael Doyle will never let anyone down and they guided the youngsters through."
Weir was happy with the goal his team scored, but dissapointed with the build-up to the U's opener at the other end, he added:
"We didn't use the ball wisely and got caught on the counter attack, but we will learn from these mistakes. It was just a little bit of naivety regarding the situation and the decisions we made and we got punished by conceding a goal.
"I thought we came into the game after the goal though and I was pleased with our response. We did the right things and deservedly got the equaliser before half-time.
"We have been urging the lads to shoot from distance and work the goalkeeper, people like Lyle Taylor will be quick to pounce on any rebounds and we saw what can happen if you hit the target.