Patriots head coach Mike Vrabel is adding another one of his former Titans assistants to New England's defensive coaching staff, reportedly hiring Scott Booker for an unspecified role.

After the Patriots let go of Belichick and Pellegrino, Vrabel has worked quickly to bring in multiple defensive coaches. Booker coached safeties in Tennessee. The Patriots also added Kevin Richardson II, who was an assistant defensive backs coach at the University of Illinois.

The Detroit Lions lost offensive coordinator Ben Johnson to the Chicago Bears this week, and are bracing to lose defensive coordinator Aaron Glenn to a head coaching gig as well.