… Management … Management … HUMAN RESOURCES MANAGEMENT MANAGEMENT AND SUPERVISION Courses Degrees & Certificates Faculty Page … do you often wonder why companies need managers or what they jobs entail. As a ship needs a captain to navigate waterways, an effective organization needs managers to perform key functions. Whether you own a business, or are employed by a private … controlling but there are different types of managers. As demonstrated in the sample Organizational Chart, managers are an instrumental because they must be able to communicate information effectively with all levels of employees. The chart …