United Soccer Coaches Convention. United Soccer Coaches, formerly known as the NSCAA, was founded in 1941 and is the largest community for soccer coaches in the world. We unite coaches of all levels around the love of the game and we elevate the game through advocacy, education, and service. Learn more at UnitedSoccerCoaches.org. Billed as “The World’s Largest Annual Gathering of Soccer Coaches and Administrators” the United Soccer Coaches Convention and US Youth Soccer Workshop draws more than 6,300 coaches and more than 11,000 attendees. Over five days there will be more than 250 educational opportunities consisting of live field demonstrations, classroom sessions, meal and social functions, award presentations, coaching diplomas and more! CLICK HERE FOR ALL THE DETAILS.