Here are four things to know about new Patriots defensive coordinator Terrell Williams. Read more on Boston.com.

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

The Patriots are reportedly set to hire Lions defensive line coach Terrell Williams as the new defensive coordinator.

Terrell Williams spent six seasons working with new Patriots coach Mike Vrabel before coming to Detroit last winter.

New England Patriots head coach Mike Vrabel has made his second big hire, snagging another former Detroit Lions coach for his ...

Mike Vrabel is acting quickly to fill out his coaching staff with the New England Patriots, hiring Detroit Lions defensive ...

Mike Vrabel has hired Josh McDaniels and Terrell Williams to be his top coordinators, while the Patriots have retained Jeremy ...

Terrell Williams, who Dan Campbell has described as the NFL's best defensive line coach, has left the Lions to become the DC ...

FOXBORO -- The New England Patriots are hiring former Detroit Lions defensive line coach Terrell Williams to be their new ...

Detroit Lions defensive line coach Terrell Williams is departing the organization and will accept the defensive coordinator ...

Lions defensive line coach Terrell Williams is leaving Detroit to be the new defensive coordinator of the New England ...

Terrell Williams spent six seasons working with new Patriots coach Mike Vrabel before coming to Detroit last winter.