People who work in the project & Support field are responsible for managing and supporting projects and processes. Skills and techniques used within project & Support are project management, planning, stakeholder management and administrative skills.
In a leadership position someone is responsible for a group of people, typically an organizational unit or the entire organization, depending on the size of the organization. Leaders are responsible and accountable for overseeing and guiding strategic activities, programs and managers who report to them. Just a few people in an organization are typically in a leadership role.