From filling roster holes in free agency and the draft to overhauling entire units and schemes, NFL Nation reporters assess the biggest offseason need for all 32 teams.
AFC EAST
Buffalo Bills
Fix the NFL's 29th-ranked offense
This starts with quarterback Tyrod Taylor, who will likely be replaced before next season. But the Bills must also consider whether Rick Dennison is the right fit at offensive coordinator after questionable playcalling at various points throughout the season. The team must find a way to get more out of Kelvin Benjamin and 2017 second-round pick Zay Jones at wide receiver, and from their running game when LeSean McCoy is not on the field.