For the first time in 25 years, the Patriots will have a new-look defense. Here’s what to expect out of Terrell Williams and Mike Vrabel’s unit.

The New England Patriots officially announced the hiring of Mike Vrabel just two weeks ago, and since then, they've been adding new coaches to his staff left and right. On Monday, MassLive's Mark Daniels reported that the Patriots are hiring Doug Marrone and Milton Patterson to coach under Vrabel.

Detroit Lions defensive line coach Terrell Williams is leaving his position with the franchise to become New England's new defensive coordinator under Vrabel, according to a report from ESPN's Adam Schefter.