A member of the University of Michigan Athletics Hall of Honor and a finalist for the Hermann Trophy, Minihan most recently served as head coach of the women’s soccer team at USC Upstate, where she guided the program through consistent growth and on-field progress, including a Division I-era record for wins in a season and notable defensive improvements. Before joining USC Upstate, she had coaching roles at Syracuse, Michigan, Liberty, and Western Michigan, as well as previous head coaching experience at Pittsburgh-Bradford and Anderson University. Her experience in the game goes beyond coaching. A four-year starter at Michigan, Minihan was a three-time First-Team All-Big Ten selection, Big Ten Player of the Year, and an All-American, and she later competed professionally and with the U.S. U-21 National Team. In recent years, Minihan has broadened her focus beyond the pitch – earning a master’s degree in human resource development and studying team performance, leadership, and organizational effectiveness. She has also served as a certified strengths coach, helping athletes gain a better understanding of themselves and how they contribute within a team setting.
That perspective now shapes her coaching philosophy and approach with the Liberty.

Diaz joins the Liberty SC from Brooklyn FC in the USL Super League, where he specialized in goalkeeper development and tactical training. His coaching career includes goalkeeper coach roles with the New York Cosmos and assistant/goalkeeper coach at Briarcliffe College (2011-14). As a player, he competed for Briarcliffe College (2008-09), Cortulua Professional Soccer Team (2010), FC New York (2011), Real Murcia (2013), and the New York Cosmos (2014-18).

Mattern is on board as the Assistant and Sports Performance Coach of the Greenville Liberty. Mattern has been in the industry since her playing days at the University of South Carolina. From 2015-2023, Mattern was the Co-founder and COO of 11.11 Training, a soccer development facility for aspiring college athletes. She brings years of experience competing in professional league across the world, including the Netherlands’ FC Twente, Sweden’s Mallbacken IF and the Atlanta Beat in the U.S. Prior to her professional journey, she was a 4-year starter at USC, 2-year team captain, First-team All-American (first in program history), and 2007 SEC Defensive Player of the Year. Mattern’s ties with the Gamecocks remain strong, as she was inducted into the University’s Athletic Hall of Fame in 2022, only the second women’s soccer player in program history.

Thompson also joins the Liberty technical staff, where she will serve as the Equipment Manager. Thompson is currently pursuing a management degree from Greenville Technical College. She is a graduate of Mauldin High School and brings experience in customer service, facility and equestrian operations.

Tomlinson joins the Greenville Liberty as a member of Prisma Health where she will be providing coverage for the Greenville Liberty Women’s soccer team and Presbyterian College Women’s soccer team. after working at Flagler College and East Carolina University, specializing in athlete care, performance, and injury prevention.