Keith Rabois explains that one of the most critical roles of a founder is to “edit the team.” He introduces the idea of “barrels and ammunition,” where most people, even great ones, are ammunition—they contribute but can’t drive things forward alone. Barrels, on the other hand, are rare individuals who can take an idea from start to finish, rally others, and make things happen. Adding more people doesn’t always mean more progress; productivity grows only when you add more barrels. Rabois emphasi