The most glaring miss came before the break when an unmarked Jonathan Walters glanced his header wide from in front of goal.
Adam said: "He probably didn't get enough on it. You are in the team to create chances and that was unlucky, but overall the team performed well.
"I thought we had the best chances in the game and if we had the bit of a cutting edge, we could have won.
"But we are happy with the point. We take the positives out of it."
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