 After Adelaide 36ers coach Dave Claxton failed to take the team to the playoffs in 1997, the club hired the recently retired Smyth as head coach of the team from the 1998 NBL season, the club banking on his years of experience as a player despite his only previous coaching experience being as a specialist coach at the Australian Institute of Sport (AIS) during his playing days with Canberra as well as coaching South Adelaide women's teams in the early 1980s.Smyth's impact on the club was immediate, with the 36ers winning both the 1998 and 1998–99 NBL Championships in his first two seasons coaching in the league (according to Smyth, the 36ers coaching job in 1998 came down to himself and former North Melbourne and Brisbane coach Bruce Palmer, but the 36ers ultimately wanted someone local).The team was beaten semi finalists for the next two seasons before winning their 4th championship, and 3rd under Smyth, in 2001–02.