The Iron failed to take advantage of teams around them having games called off as they fell to a late 2-1 defeat at home to Hemel Hempstead Town.
Braintree are still fourth and just five points behind leaders Dartford but Quinton was critical of his side’s “naive” defending as they conceded a late free-kick that Hemel profited from.
The Iron boss told the club’s website: “They are a young side still learning but they should have done better and earlier having gone a goal up we had enough chances to have scored more goals and wrapped the game up.
“It's a setback but we’ll give everything in training this next week and have a sort out but we must cut out individual mistakes.
“I felt we were the better side and created chances, always looked good going forward and solid at the back in what were really difficult playing conditions.
“There’s a long way to go and we will work hard to get back to regular winning ways.”
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