It enables them to mediate conflicts. And it paves the way for successful discussions about complex subjects. It's a truism that leaders and managers must be good communicators. But there's a difference between being articulate, which is what books about communication typically teach, and knowing the tools of Straight Talk. Director, Expresser, Thinker and Harmonizer.
Most people use one or two styles more often than the others.
Your blend of styles determines the way you communicate. It's especially important to understand your primary style, since it's the one you use most often. It's equally important to know the style you use least often, since that represents your area of potential growth. No one style is better than the others, but it may be to your advantage to play up one style over another, depending on the situation.