Its a fact of life: birds flock, fish school, people tribe. Malcolm Gladwell and other authors have written about how the fact that humans are genetically programmed to form tribes of 20-150 people has proven true throughout our species history. Every company in the word consists of an interconnected network of tribes (A tribe is defined as a group of between 20 and 150 people in which everyone knows everyone else, or at least knows of everyone else).In Tribal Leadership, Dave Logan, John King, ...