The 2016 season was Seth Trembly's fourth as an assistant coach on the University of California San Diego men's soccer staff.
Trembly brought an accomplished playing career at both the professional and international levels to the Tritons. He was part of the original 1999 class at the Bradenton (Fla.) Academy. A member there of the U.S. Under-17 national team residency program, he trained with the likes of future full-team regulars Landon Donovan, DaMarcus Beasley, Kyle Beckerman, Oguchi Onyewu and Bobby Convey. That side placed fourth at the 1999 FIFA U-17 World Championship in New Zealand, with Trembly starting four of six games at left back. It later earned the title of U.S. Soccer's Team of the Decade.
In 1999, Trembly signed a Project-40 contract with Major League Soccer (MLS), known these days as Generation adidas, and was allocated to his hometown team, the Colorado Rapids. He appeared in 52 matches for the Rapids through the 2004 campaign. From there, Trembly joined the expansion Real Salt Lake, scoring twice in 22 games played over 2005-06. He received the RSL Humanitarian of the Year award for 2006, and finished his competitive career with the Montreal Impact, then of the United Soccer League (USL), in 2007.
A native of Littleton, Colo., Trembly attended Arapahoe High School in Centennial, Colo., after returning home from the Bradenton Academy. Having signed a professional contract with the Rapids in between his junior and senior years, he trained with the club while at the same time completing his high school curriculum.