Leaders must be able to adapt based on the group they are communicating with at the time. Effective communication skills are an important aspect of any leader's portfolio of skills and experience.
A good leader adapts his communication style depending on his audience. When speaking to employees, he may need to have a much more directive style than when he is delivering a presentation to the community or speaking to customers.
Leaders should identify the audience and their characteristics and interests, then adjust their communication style based on what the audience needs and what will encouage them to react to meet the goals of the communication.