“Most people know someone in their organization who doesn't perform well, yet manages to keep his job year after year. The usual reason, we find, is that the person's leader doesn't have the emotional fortitude to confront him and take decisive action. Such failures can do considerable damage to a business. If the nonperformer is high enough in the organization, he can destroy it.”
If you have a nonperformer bringing down your organization, show courage to confront that situation.