Costa began his coaching career at Wilmington High School in Wilmington, Delaware, where was an assistant football coach from 1972 and 1981 and also coached basketball, track, and swimming. He moved to the college level in 1982 as an assistant football coach at Cheyney under Andy Hinson. As assistant head coach and defensive back coach, he mentored Andre Waters, who went on to play in the National Football League (NFL). Costa succeeded Hinson as Cheyney's head football coach in 1985.[2] He finished his coaching career as an assistant with Christopher Newport.[3]
^ abcdefghijklmnoIn October 2008, St. Augustine's was penalized by the NCAA for "a lack of institutional control and other major violations". The program was forced to vacate all wins from the 2003 though 2007 seasons: 5 wins in 2003, 4 wins in 2004, 8 wins in 2005, 4 wins in 2006, and 2 wins in 2007.[4]
^ abcCosta was fired after the first game of the 2014 season, a non-conference loss. Michael Morand was named to succeed him and led St. Augustine's to a record of 3–6 over the final nine games of the season. The team compiled 3–4 mark in conference play, placing third in the Southern Division of the Central Intercollegiate Athletic Association