A Chicago native, Santiago’s resume includes a season at Northwestern University as an Assistant Coach, 3 seasons as an Assistant Coach and Recruiting Coordinator at his alma mater, Webster University, and a stint as a Graduate Assistant at Quincy (Ill.) University and most recently named the Head Coach at Milwaukee School of Engineering. He led the Raiders to their best season in 2025, reaching the NCAA Division 3 tournament. Coach Santiago was named Region 8 Coach of the Year as well.

As a player at Webster University, Santiago was named All-Region and All-SLIAC and helped lead the Gorloks to the College World Series. Coach Santiago spent time giving lessons in the St. Louis area for the past 4 years and does both hitting and pitching lessons. With a strong group of clientele built, Adrian will bring tons of experience and a good reputation to Bigler Sports.