Seven head coaches. Five GMs. Seven defensive coordinators. Nine defensive line coaches. Two owners. Amid all the change at One Bills Drive over the past 13 years - one thing has remained a constant: Kyle Williams. My story on the retiring Bills' DT: https://t.co/zM3yK8RgKA

— Sal Capaccio 🏈 (@SalSports) December 28, 2018