Herscu began his career working in professional basketball as a member of the basketball operations staff for the Fort Wayne Mad Ants of the NBA G-League in 2012. In 2013, Herscu worked for the Chicago Sky of the WNBA as a member of the video and scouting staff. From 2013 to 2015, Herscu was a video intern for the Chicago Bulls. In 2015, Herscu was named an assistant coach for the Mad Ants.[1]
In 2016, Herscu was named as an assistant coach for the Chicago Sky under head coach Pokey Chatman.[2]
In 2016, Herscu was hired as an assistant video coordinator for the Los Angeles Lakers, he worked as an assistant video coordinator until 2018.[3] From 2018 to 2019, he was an advance scout and player development assistant for the Lakers.[4]
In 2019, Herscu was hired as an advanced scout for the Sacramento Kings.[5] Starting in the 2021–22 season, Herscu was named an assistant coach for the Kings.[6] From 2019 to 2022 he worked under head coaches Luke Walton, Alvin Gentry, and Mike Brown.