Vermes was appointed as Sporting's technical director in 2006, and was named head coach of the club in 2009.
Under his leadership, SKC hoisted the 2013 MLS Cup, and the Lamar Hunt U.S. Open Cup in 2012, 2015 and 2017. The club made the postseason 11 times throughout his tenure, including four first-place finishes in the Western Conference during the regular season.
Vermes remains the lone MLS player to win MLS Cup as a player and a manager with the same team, after leading the then-Kansas City Wizards to the 2000 MLS Cup.
He ranks third all-time in regular season wins with 203, and across all competitions, coached Sporting in 609 matches