The human body is beautifully and efficiently arranged (at least my body is). Each organ has a particular function. I have a hand to hold a glass, a mouth to drink with, a belly to fill, a liver to deal with the poison and so on and so forth. Heart, head, lungs, liver, kidney and colon: each performs a particular task, and the result, dear reader, is the glory that is I. If you arrange a group of people and give each one a particular job, you are, metaphorically, making them act together like the organs of a body. You are organising them.
