Tim DeRuyter was officially introduced as Texas A&M’s assistant head coach and defensive coordinator Thursday.DeRuyter, 47, served as Air Force’s defensive coordinator the last three seasons and turned a porous defense into one of the nation’s best.

“My family and I are excited about the move to Texas A&M,” said DeRuyter, a 1985 graduate of the academy, who played three seasons for the Falcons. “Of course, we have mixed emotions since I am a graduate and we have spent so much time in a special place like the Air Force Academy and Colorado Springs.”

Air Force assistant head coach and co-defensive coordinator Matt Wallerstedt is the likely replacement for DeRuyter at the academy. Wallerstedt, who also handles the Falcons’ inside linebackers, just completed his second season at Air Force.

Former Air Force defensive coordinator Tim DeRuyter was named to the same post at Texas A&M. Photo by