The Buffalo Bills have plenty of work to do if they want to take the next step towards being a championship contender in 2018 and beyond. Their defense, while looking fundamentally sound and fairly effective for much of the 2017 NFL season, potentially may lose five starters in free agency, and they also are in danger of losing a key sub package player in nickel corner Leonard Johnson.
With this in mind, the Bills have plenty of needs on defense, with some entire position groups in need of a complete overhaul. There may be too much work to do in one offseason, especially with multiple needs on the offensive side of the ball, as well, but the team can begin preparing for the future by acquiring young, controllable talent at a few key positions.