George Ambler has a great post about leadership:

Fact 1: As each goose flaps its wings it creates an
“uplift” for the birds that follow. By flying in a “V” formation, the
whole flock adds 71% greater flying range than if each bird flew alone.
Lesson: People who share a common direction and sense
of community can get where they are going quicker and easier because
they are traveling on the thrust of one another.