Great leaders always communicate well. One of the biggest problems I see in IT shops is lack of communication. When you got one or two people in an organization that have alot of knowledge and they don't communicate it to others for whatever reasons, the whole department suffers. The left hand needs to know what the right hand is doing for a department to work well. Great leaders recognize this. I agree that leaders give vision and direction to the group, but you can't do any of that without good communication first. 😀