The NFC South side, who have won just one of their four games so far this season, lost 30-23 to the New England Patriots last night.
The head coach told reporters: "We've had opportunities, and we haven't made the most of those opportunities. We, as a coaching staff, and as a team, have to learn from those mistakes we have made in the first four games and move on and get them corrected.
"It's a long season, it's just the end of the first quarter, and we will learn from the mistakes we have made and move on.
"Our red zone efficiency was not what we needed it to be, again, in this ballgame. We're just not executing like we need to in the red zone. It's an offensive league and you've got to score touchdowns."
The Falcons will play the New York Jets next Monday.