This offseason is more than likely to serve as a changing of the guard at defensive end for the Buffalo Bills. Veterans Mario Addison and Jerry Hughes had effective seasons despite more limited snaps, while second-round pick A.J. Epenesa along with rookies Greg Rousseau and Boogie Basham picked up the remaining slack. Now, Addison and Hughes are free agents—as is Efe Obada—and could be considered luxuries on a team looking to keep its payroll under control. That leaves only the three aforementioned younger players, who aren’t exactly proven by any means. This could cause the team to invest, yet again, in some rookie pass rushers.