My teammates and I have learned about building world-class teams the hard way: by competing in and winning the world’s toughest ultra-endurance adventure races. From the leech-infested jungles of Borneo to the towering peaks of Tibet and Ecuador, from the frigid seas and glaciers of Patagonia to the searing desert of Namibia, we have run, paddled, mountain biked, climbed, rafted, spelunked, navigated and raced across the most remote places on earth for up to 10 nonstop days and nights as a team. There is no shelter, no warm food and no escape from the harshness of the uncharted terrain and no reprieve from the competitors relentlessly nipping at our blister-covered heels.