Theilen Smith joined the Marshall coaching staff as defensive line coach in May 2005.
"He is an outstanding recruiter who relates well to parents and kids," Head Coach Mark Snyder said. "Thielen is a great football coach and an outstanding individual that is an asset to our program."
Smith took over a defensive line in 2005 that featured no returning starters and put togeother a group that helped Marshall rank first in total defense in Conference USA.
Smith came to Marshall after serving as an assistant coach at Clemson University for the last six seasons. He was responsible for the defensive interior linemen for the Tigers between 1999 and 2003 and oversaw Clemson's Whip linebackers and rovers in 2004.
Prior to his time at Clemson, Smith served as the defensive line coach at Tulane (1995-98), defensive line coach at Louisiana-Monroe from (1993, 1994), inside linebackers coach at Louisiana State (1991, 1992), linebackers and defensive line coach at Tulane (1985-90), and as defensive line coach at Louisiana-Lafayette (1979-84). During his collegiate coaching career, he has participated in seven bowl games with the most recent being the 2004 Peach Bowl.
Smith (whose first name is pronounced THI-lihn) played linebacker at LSU and graduated with a bachelor's degree in education from the school in 1977. During his senior season, he recorded a career high 62 tackles, including four for losses. He played on two bowl teams at LSU, including the 1973 team that earned a berth in the Orange Bowl.
Smith is married to the former Gail Scott and the couple has six children, Toyah (27), Keisha (22), Terrance (22), Temetria (17), Vincent (16), and Shaun (16).