If you're forecasting an improved Falcons team in 2016, some of that is inevitably coming from new additions like Derrick Shelby and Keanu Neal. The rest of it has to come from players already on the roster, and it's worth trying to suss out who might actually take a major step forward this year.
The most obvious candidate by a country mile. Beasley showed flashes of tremendous talent in 2015 despite being a rookie with a torn labrum, so given another full offseason, a return to health, and more coaching, he could be primed for a huge breakout season.