In 2013, the Bills introduced its 17th head coach in team history with the hiring of Doug Marrone. With Marrone, came long time assistant Donnie Henderson, who coached defensive backs while both men were at Syracuse University. Coach Henderson came to the Bills with 30 years of experience, coaching at both the collegiate and professional level. He is a highly respected coach and is considered one of the great teachers of the game, as he has been apart of some amazing defenses.
When coach Donnie, as the players like to call him, took over of the defensive backs in 2013; he took over a unit that was underwhelming at best.