A lot of people don’t understand the sheer complexity of the builder’s job and the systems required to build a house from scratch. Many analogies have been used to describe the professional builder: the conductor of an orchestra, the captain of a ship, even a general executing a military campaign. The point is that the builder is the one who must coordinate the innumerable players and products needed to transform a set of two-dimensional drawings into a finished home. The builder has to make sure that everything happens just when it’s supposed to, and that the end result is exactly what the clients envisioned.