During Slocum's 14 years as head coach, the Aggies compiled a record of 123–47–2, making Slocum the winningest coach in Texas A&M history. During his career, Slocum never had a losing season and won four conference championships, including the Big 12 (the Southwest Conference was renamed in 1996) title in 1998 and two Big 12 South Championships, 1997 1998. Additionally, he led the Aggies to become the first school in the Southwest Conference history to post three consecutive perfect conference seasons and actually went four consecutive seasons without a conference loss. Slocum reached 100 wins faster than any other active coach.