Calhoun's first job post graduation was as an assistant at Walsh University where he was part of the Cavaliers' NAIA national championship squad in 2005. In 2007, Calhoun rejoined Huggins at West Virginia as director of basketball operations, while being elevated to assistant coach for one season.
In 2012, Calhoun was hired as the head coach of Division II Fairmont State University, and in six seasons at the helm, he guided the Falcons to a 124–38 record, which included four NCAA Division II Tournament appearances, and culminated in the school's first-ever title game appearance in 2017.[3]
Calhoun was named the 13th coach in Youngstown State history on March 27, 2017, replacing Jerry Slocum.[4]
On March 30, 2024, Calhoun was named the 22nd head coach of the Utah State men’s basketball team, replacing former coach Danny Sprinkle.
National champion
Postseason invitational champion
Conference regular season champion
Conference regular season and conference tournament champion
Division regular season champion
Division regular season and conference tournament champion
Conference tournament champion