[2][3] Marsh served as an assistant coach of the Iowa Energy for the 2013-2014 D League season.

[2] Marsh served as an assistant coach of the Bakersfield Jam for the 2014-2015 D League season.

[2] Marsh served as an assistant coach of the Fort Wayne Mad Ants from 2016-2017.

[2] Marsh was hired as an assistant video coordinator for the Toronto Raptors during the 2018-2019 NBA season, reuniting him with Nick Nurse.

[2][4] Marsh was hired by the Las Vegas Aces as an assistant coach to Becky Hammon on March 14, 2022.