What is the defference between leader and Manager
Leadership and Management both are related but not the same. leader and manager both plays an important role in the organisation to achieve success and to achieve desired goals and objectives of the organisation in the organisation. A person can be a good leader manager or both or neither this is because leadership differs from management on some counts. 

Here some more definition which help you to understand the concept of leader vs manager

According to John kotter
Leadership differ from management in terms of the emphasize that is put on 4 activities
  1.  creating and agenda  
  2. developing a human network for achieving the agenda  
  3.  executing plans number 
  4.  outcomes of activities
While leadership emphasized change in these activities. Management believes in status quo. 

How can decide who is good leader or manager. 
First of all no one is good or bad in the management leader and manager are two separate positions in the organisation to achieve the desired objective and goals of the organisation by performing they  work in good manner. Here we will ind the difference between leader and manager with the help of some points-

  1. Purpose and focus. 
  2. People vs tasks. 
  3. Influence and authority.
  4. Long term vs short term focus. 

1 purpose and focus - 
Leaders: Leaders have a broader focus on establishing a vision, setting goals, and inspiring others to achieve them. They are responsible for providing a sense of direction and purpose to the team or organization. Leaders often lead by example and motivate others to work towards a common goal.
Managers: Managers are more focused on executing plans, organizing resources, and achieving specific objectives. They are responsible for planning, coordinating, and controlling the daily activities of the team or department. Managers ensure that tasks are assigned, deadlines are met, and resources are effectively utilized.

2 People vs tasks - 
Leaders: Leaders primarily focus on people. They build relationships, develop team members, and understand their strengths and weaknesses. Leaders empower and support their team members, fostering an environment of trust and collaboration. They promote teamwork, encourage innovation, and inspire others to reach their full potential.
Managers: Managers primarily focus on tasks and processes. They assign responsibilities, monitor progress, and ensure that work is completed efficiently and effectively. Managers are responsible for organizing resources, allocating budgets, and making decisions to optimize productivity. They provide guidance, supervise performance, and address any issues that arise.

3.Influence and authority - 
Leaders: Leaders often have influence and authority that extends beyond their formal position or title. Their ability to inspire, persuade, and influence others is derived from their personal qualities, expertise, and charisma. Leadership is more about influence and inspiring others to follow willingly, rather than relying on formal authority.
Managers: Managers derive their authority from their designated position within the organizational hierarchy. They have the formal power to make decisions, enforce policies, and direct the actions of their subordinates. Their authority is derived from their position, and their influence is typically based on their managerial role and responsibilities.

4.long term vs short term focus - 
Leaders: Leaders often have a long-term perspective and are focused on the future. They identify opportunities, navigate change, and make strategic decisions that shape the organization's direction. Leaders anticipate trends, evaluate risks, and adapt to the evolving needs of the organization and its stakeholders.
Managers: Managers typically have a short-term focus, concentrating on operational efficiency, meeting deadlines, and achieving immediate objectives. They are responsible for day-to-day operations and ensuring that tasks are completed within specified timeframes and budgets.