Mike Vrabel joined the Patriots as head coach in a throwback to the Bill Belichick era. But his tenure won't involve Belichick's son, Brian.

Things could change drastically for the New England Patriots, but it seems Mike Vrabel, alongside Terrell Williams, will implement a tried-and-true defensive plan for the team that has already been proven to work.

Vrabel hired McMillan in 2021 as a defensive assistant where he primarily worked with Titans outside linebackers. In 2022, he worked as a defensive line assistant coach alongside Williams, who was named the Patriots defensive coordinator. McMillan continued to work with Titans defensive lineman in 2023.