Earlier this week I shared a conversation with New Balance Boston Coach Mark Coogan. He is truly one of distance running's great sages. His team includes current lions of our sport like Elle St. Pierre, Heather MacLean, and recent addition Parker Valby. Mark shares tales from New England's rich running tradition and his own elite career on the track, grass, and roads. We also unpack specific workouts that have yielded his athletes Olympic appearances and World Championships medals. But more importantly, we hear about his overarching training principles, which, I believe, can help guide all of us to greater success and joy in our running.