Career
As a player, Busby spent time with the Toronto Lynx, Montreal Impact, Vancouver Whitecaps, Oxford United, Crystal Palace, Millwall, Caldas Sport Clube, and Ottawa Wizards. After retiring from soccer, he earned a degree in sociology from Queen"s University, and earned his USSF "A" license and NSCAA "A" diploma with over 10 years of diversified coaching experience including the women"s programs at Fairleigh Dickinson University and Queen"s University. His first professional coaching experience was in 2003 with the Ottawa Wizards, where he led he Wizards to a conference title and clinched a playoff spot.
During the playoffs the Ottawa Wizards Board handed a two days notice to the Canadian Soccer League in withdrawing from the playoffs.
As a result from that the Computer Science Laboratory revoked the franchise. In 2004 he was named Canadian Youth Team Coach for the National Training Centre in Eastern Canada and Technical Director for the Kanata Soccer Club.
In 2005, he was named the new Head Coach for the Toronto Lynx, where he had a disappointing season finishing with a league worst three wins, 17 losses, and eight ties the worst performance in league history and 12th place in the 12 team league. After one season with the Lynx he left the head coach role.
After leaving the Lynx in 2006 he coached the AFC Leopards of the VMSL Premier B Division, and led them to the Imperial Cup but lost in the quarter-finals to Westside Football Club. He left the Leopards to become the Whitecaps Football Club Academy"s NSPPP Technical Coordinator.
On 16 December 2009 was named as the successor of Bob Birarda as Vancouver Whitecaps Women head coach and left the Whitecaps Football Club Academy. In 2013, Busby signed on as Head Coach and general manager for the Seattle Sounders Women.