Karl Robinson says his side must learn to put teams to bed when they have the chance after Dons had to grind out a 2-0 win against Crawley.
Dele Alli’s 15th minute opener could have made it five or six had the home side put away some of their early chances.
It remained 1-0 for the majority of the game, but the lead was under threat when Kyle McFadzean tripped Izale McLeod when through on goal - the former Crawley defender given his marching orders. David Martin saved the penalty to keep Dons in the lead, and Benik Afobe added to his brace on Tuesday with a goal late on the day to seal the victory.
Robinson though felt Dons should have had the game sealed long before Alli second.
“I felt we were unplayable for the first half an hour,” he said. “But then we missed chances, and had some poor play.
“After that, I thought Crawley dominated. They should have had a second penalty. The first one was clear cut.
“But we held on, we worked hard and made it hard. But the first half an hour was sensational stuff.
“We should have had a few more goals, but this young team . Unfortunately, they need to realise how to put teams to bed when we’re on top because we’re not always going to dominate teams like we did.
“John Gregory has put together a side that is really difficult to beat, with some quality players. We rode our luck at times, but our work-ethic and togetherness has got us over the line.”
McFadzean’s sending off wasn’t met with much appeal from the Dons bench, though Robinson felt it was a challenge the defender didn’t have to make.
He said: “It was a sending off. I don’t think he had to do it, I felt he could have got back. It’s poor defending.
“We told them about Izale’s strengths... we know about Izale’s strengths! He doesn’t want it in to feet, he wants it over the top.
“It’s disappointing but Jordan Spence stepped in and did wonderfully well, and now Kyle has to fight for his place back.”
Having come off the bench to score twice against Manchester United, Afobe earned a start against Crawley and worked tirelessly for 90 minutes, lashing home Dons’ second at the death for his fifth of the season.
His manager though says the on-loan Arsenal striker still has a lot to learn, but will get even better.
Robinson added: “Benik has so much more learning to do, and he makes some silly errors. But there are areas we can improve, and he’s only going to get better.
“So will Will Grigg, all of them will.”