Live by the "Two-Pizza" Rule

Interaction should be constant, not crammed into meetings once a week. You just turn around in your chair and bounce an idea off one of the other 10 people in your office. Keep the floor plan open so people can talk to each other. As the company gets bigger, keep dividing it into smaller and smaller groups. Follow Jeff Bezos’s two-pizza rule: Project teams should be small enough to feed with two pizzas.