'Under the tutelage of old-school run-game enthusiast Greg Roman and Mike Shanahan disciple Anthony Lynn, the Bills were well below the league average for pass attempts, while Dennison's Broncos offense threw it right at the NFL average. The league's average completion percentage was 63 percent. Collectively, the Bills completed 60.3 percent of their throws, and Tyrod Taylor's completion percentage was 61.7. The combo of Trevor Siemian and Paxton Lynch completed 59.5 percent of their passes.'