The Tennessee Titans announced four additions to their coaching staff on Tuesday.
The Titans named Matt Edwards as their assistant special teams coach, Scott Booker and Ryan Crow as defensive assistants and Matt Pees as quality control. Pees is the son of Dean Pees, the team's defensive coordinator.
New head coach Mike Vrabel retained Mike Sullivan and Luke Steckel as offensive assistants from the staff he inherited after the dismissal of Mike Mularkey.
Edwards has spent 15 years coaching on the collegiate level, including the last four as a defensive coordinator at Tiffin. He also spent time at Florida Atlantic, Miami (Ohio), Kent State and the College of Wooster.
Booker, who is also a 15-year college coaching veteran, coached safeties and special teams last season at Nebraska.
Crow served as a graduate assistant working primarily with linebackers last season at Ohio State.
The younger Pees recently served as the head coach at Green Mountain High School (Colo.) for the last two years.