MacLean, who improved incredibly from 4:19 to 3:58 under Mark Coogan, was extremely grateful for her time on the team. Team NB Boston will be without 3 Olympic 1500 runners this summer as 1500m Olympian Emily Mackay also recently left and Elle St. Pierre just gave birth.
‒Heather MacLean, talking about Mark Coogan, under whom she incredibly improved from 4:19 in the 1500 to 3:58 and made the Olympics. MacLean has left Coogan's Team NB Boston and joined Juli Benson's growing group. Fellow Olympian Emily Mackay has also left the group.