[2] As a player, Busby Jr. spent time with the Toronto Lynx, Montreal Impact, Vancouver Whitecaps,[3] Oxford United, Crystal Palace, Caldas Sport Clube, and Ottawa Wizards.

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.

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 FC.

[7] In 2021, The Guardian reported that he was accused by a former player of attempting to solicit sex from her during a recruiting process when he was in charge of the Vancouver Whitecaps women’s team.

[8] After a three-year hiatus, he was re-appointed as the Jamaican Women's head coach[9][10] after FIFA's Ethics Committee closed their preliminary investigation into allegations against Busby without reaching any judgment.