The NFL's best play-callers do a great job of optimizing their offense's talent. Despite the fact that the Dallas Cowboys reached the divisional round of the playoffs last season, it was clear that then-offensive coordinator Scott Linehan failed to optimize the talent he was given.
Sure, things got better once Amari Cooper was brought in, but Linehan's play-calling still left a lot of points on the board. The Cowboys finished 24th in offensive DVOA -- which "measures a team's efficiency by comparing success on every single play to a league average based on situation and opponent," according to Football Outsiders -- 22nd in points and yards per game, and 26th in red-zone scoring percentage.