There's a myth that runs through the corporate world: that for results to happen, someone has to suffer. Marvio Portela has spent decades leading teams at multinational companies around the globe, building businesses from the ground up, and crossing finish lines in triathlons that pushed his body and mind to the limit. Along the way, he arrived at a conclusion that runs against almost everything the market preaches: The highest-performing teams aren't the ones living under constant pressur...