 On September 27, 2017, after 6 seasons with Maccabi, Smith announced his retirement from playing professional basketball.On June 11, 2018, Smith would join Jason Staudt as new assistant coaches for the Phoenix Suns under new head coach Igor Kokoškov's staff.However, after putting up a 19–63 record with the Suns, Smith was fired alongside the rest of the team's coaching staff on April 23, 2019.