On a single team, every individual needs to know every other individual in order to build trust, and they need to maintain comprehensive awareness at all times in order to maintain common purpose—easy with a group of twenty-five, doable with a group of fifty, tricky above one hundred, and definitely impossible across a task force of seven thousand. But on a team of teams, every individual does not have to have a relationship with every other individual; instead, the relationships between the constituent teams need to resemble those between individuals on a given team:
