Early life Sadler was born and raised in
Greenwood, Arkansas.
Playing career Sadler received his undergraduate degree from the
University of Arkansas, where he was a student manager under legendary coach
Eddie Sutton.
Coaching career Sadler's coaching career started as an assistant with a string of schools before landing a head coaching job at
Arkansas–Fort Smith (then known as Westark Community College) after previously serving as his assistant coach. At UTEP, Sadler led his team to a 48–18 record He departed UTEP for the head coaching job at the
University of Nebraska–Lincoln on August 8, 2006 to take over for former coach
Barry Collier, who left to become the athletic director at
Butler University. after six seasons without ever making an NCAA tournament appearance. On June 13, 2012,
Kansas basketball coach,
Bill Self announced the hiring of Sadler to replace
Barry Hinson as Director of Basketball Operations. On March 18, 2022, Hoiberg announced that Sadler was no longer with the Nebraska program as he had restructured his staff. On November 17, 2022, it was announced that Sadler had joined the
Oklahoma Sooners men's basketball program as a special advisor to head coach
Porter Moser. ==Head coaching record==