At TU, we are careful to distinguish between leader and managers.
From our book,
We should define “management”. We are throwing a broad net here to include the executive and governance, as well as personnel management and work management.
Our definition of a manager is one who manages the resources made available to them and the people working with them to achieve outcomes asked of them.
In this book, we avoid the word “leaders”. Leadership is an intersecting set with managers. Our definition of a leader is one who influences others in a group setting, usually in a particular direction. Executives should provide leadership, and some managers should too, but non-managers will also lead, and (in a large organisation) most managers are not leaders. Leadership is a behaviour. Management is a role.
“Leader” is also used to refer to the boss, the executive manager. We try not to use it that way.