People who work in the administration field are responsible for the documentation and sharing of information. Skills and techniques used within administration are data entry, scheduling, secretarial skills and general support.
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.