Martin Barrientos joined the ENMU Baseball staff in August 2024 as a graduate assistant ahead of the 2025 season. Barrientos joined the Greyhounds staff after spending time with the Trenton Thunder (Trenton, N.J.) as a performance coach. The Thunder are part of the MLB Draft League, made up up of six teams, preparing players for the MLB draft. Five players were drafted in the first half of the draft league.
Prior to joining the Thunder, Barrientos spent the 2024 spring season at Saint Xavier University (Chicago, Ill.), serving as a graduate assistant for the baseball program. In the 2024 season with the Cougars, Barrientos helped coach a program that led the their conference in several categories (stolen bases, doubles, home runs, RBIs, and slugging percentage). One player went on to sign professionally while under his tenure as an assistant. Barrientos is a double graduate of Saint Xavier '23, '24, earning a Bachelor of Science in Kinesiology and Exercise Science, and Master of Science in Kinesiology and Exercise Science.