The Atlanta Falcons made a host of changes in the offseason, including the most important position in sports and overhauling an underachieving defense. With so many important new faces on both sides of the ball, it’s easy to ask questions about who the “X-Factor” could be for this team. Is it new defensive coordinator Jeff Ulbrich? The widest variance of success should be on the offensive side of the ball, where the Falcons were 28th in DVOA (Defense-adjusted Value Over Average).