Assistant coach Justin Moss is in his third season with the Crimson, after joining Harvard prior to the 2016-17 school year. In 2017, Moss was instrumental in leading the Crimson to a 4-3-1 record during the fall 15s season and the team's second-straight Ivy Championship appearance. Harvard concluded its fall campaign with a victory over Army in the NIRA Quarterfinals, before losing to Dartmouth in the NIRA Semifinals.
Moss joined the Crimson staff in 2016-17 and had an immediate impact, helping Harvard reach the Ivy title game in 15s play and win the Ivy championship in 7s action. Harvard went 25-7 on the year, highlighted by a 10-5 win over Dartmouth in the 7s championship.