When Vrabel was named Titans head coach in 2018, he hired Williams to coach the defensive line, and by 2023 named him assistant head coach and had him serve as head coach of the team's preseason opener. Vrabel cited Williams' ability to "reach every player" across the roster -- including offense.

Detroit Lions defensive line coach Terrell Williams is considered top candidate for New England Patriots defensive coordinator opening.

Williams reunites with coach Mike Vrabel in New England after working on Vrabel's staff for six years with the Titans.