"I am excited to add both of these guys to our staff," Vrabel said. "Dean brings a great deal of experience and knowledge to our staff. I have seen first-hand how he teaches and develops from our time together and I wanted to bring that same experience to our players here."

"Matt brings an energy and an offensive diversity to our team. He is going to develop an offense that puts our players in position to have success. Matt has worked with some great offensive minds, helped game plan on those staffs and I am looking forward to seeing him take that next step as a play-caller."

Pees, who announced his retirement last month, returned to the game for a chance to coach with Vrabel, who won three Super Bowl rings as a player with the Patriots. Pees, who has 45 years of coaching experience, including 14 years in the NFL, spent the last eight seasons (2010-17) with the Ravens, including the last six years (2012-17) as the defensive coordinator. He initially joined Ravens in 2010, as the linebackers coach.

Under Pees in 2017, the Ravens had a league-best three shutouts and 33 takeaways. The Ravens also ranked sixth in points allowed per game (18.9).

The 2012 Ravens team won Super Bowl XLVII and Pees became just the eighth defensive coordinator in NFL history to reach the Super Bowl with two different teams. Three (2014,'15,'16) of his six years as defensive coordinator for the Ravens resulted in top 10 rankings for the defense. Over his six-year tenure as Ravens defensive coordinator, the team ranked ninth in points/game (21.1), 10th in sacks (236), 8th in rushing yards allowed (103.4/game), fourth is rushing average allowed (3.88/attempt), 13th in third-down defense (36.9%) and 13th in interceptions (86).