Since his retirement from international soccer, he has remained active in coaching and community initiatives. He has spent time organizing for inner-city Christian Ministries programs such as Soccer Beats (now Heroes FA) Also now owning a team based out of Murfreesboro Tennessee Legacy Heros FC. With a new entrance into Pioneer Premier League 2, Led By Luis A. In the mid-1990s he coached the USA Hurricanes club level soccer team in Charlotte, NC. In 1999, he became the head coach of the Montreat College Cavaliers in Montreat, North Carolina which play in the NAIA. He remained in this position until his retirement in 2006. Armstrong also coached the youth team '85 HFC Vipers of Asheville, North Carolina from 2000 to 2004. After leaving Montreat, Armstrong joined the youth club, Bethesda Roadrunners, as its head coach. He also created another section of Heroes FA, in Maryland and is currently their head coach and technical director. He is also the Director of Recruiting in Ohio for Brad Friedel's Premier Soccer Academies. He was named technical director of Rocket City United on December 11, 2009.Armstrong Announced Rocket City United Technical Director
