How to organize the defensive line as a goalkeeper

With a wonderful view of the action, goalkeepers must be more than just shot stoppers, and participate actively and vocally in communicating with their mates. They should not be solely responsible for organizing the entire team, but have the ability to do so through the vantage point they have on the field, and often the fearless nature they behold. I've often found that some of the best communicators that I coach are in fact goalkeepers. But before answering the question, let's first discuss whether or not it is actually necessary for the goalkeeper to organize the defensive line.