Improving employee performance is all about communication. Every manager wants his or her employees to use their talents to the fullest capacity. But realistically, it's not possible for this be done 100 percent of the time. Everyone has ups and downs in their work output, and any team member is bound to go through a brief dip in productivity from time to times. As a manager, it's your job to help your team power through those slus and bring performance and engagement to their peaks. There are a number of ways to express that you want greater results from your staff.