The Falcons offense went brain dead at that point. Two runs would have taken over a minute off the clock, and would have probably at worst had the ball between the 25 and 30 for a 40 something yard field goal. That is very makeable by NFL kickers. The coaches needed to realize that being up two scores was much more important than being up two touchdowns. If the Falcons score, they most likely (barring a NE recovery of an onside kickd) have the ball and their offense could probably run out the clock.
Falcons should have only been thinking run the football, grind the clock, kick the field goal, win the game.