IT leaders are responsible for coordinating, planning, and leading computer-related activities in an organization. They help determine the IT needs of an organization and are responsible for implementing computer systems to fulfill the organization's information systems requirements. The scope of an IT manager's responsibilities varies. In some cases, the focus is solely on computer networks. In other cases, the focus can be on managing telecommunications systems and other electronic support systems related to the company operations. These discipline is usually made of roles such as CEO, CTO, CIO/Chief Digital Officer/Chief Innovation Officer, VP of Product Management/Head of Product, Product Manager, VP of Engineering/Director of Engineering, Chief Architect, Software Architect, Engineering Project Manager/Engineering Manager, Technical Lead/Engineering Lead/Team Lead and finally a Principal Software Engineer.