A frustrated Clarke, who had seen his side defeated by Crawley Town in Round One of the Carabao Cup last Tuesday, insisted Nolan's goal was offside but admitted his team must get better at both creating and converting chances as they once again failed to take anything out of the game.
Clarke, who added Zak Jules, Jack Kiersey, and Caolan Lavery to his starting line-up, went on to admit that his team need to be more ruthless in the final third and can look forward to more focused training sessions as the coaching staff seek to iron out a few of the issues currently surrounding the team.
Speaking to members of the local media, Darrell said; "The goal is offside. He is one-yard off on the shot and four yards off when the ball is flicked around the corner.
"The officials have got that massively wrong. But let’s not paper over the cracks. We should have been a lot more ruthless in the final third - then we haven’t got a case to answer.
"We have had numerous corners, lots of territory, we have broken their line plenty of times. But we have not looked after that final ball so I am frustrated. I’m frustrated with both the decision and our end product.
"We certainly deserved something from the game but you don’t deserve anything if you don’t put the ball in the back of the net. The amount of territory we had at times - to be coming away with a duck egg - no goals, is very disappointing."
The Mansfield-born boss went on to admit his side shouldn't have resorted to long-ball football after falling behind and will have to continue to work hard in training in order to improve their game management.
Darrell continued; "Sometimes it’s a bit too easy to just lump it in there. We have got to make angles and trust our players to isolate themselves one-v-one. We didn’t do that enough.
"We were a little bit panicky and a little bit edgy but that is what you get with a new ground. There is endless stuff we need to work on in training. I keep saying it, but we’ll keep chipping away."