system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
Why a manager is needed for a team?


assistant
1. A manager's work is to manage the team and delivery the work on time
2. Team member needs to be organized their work and a manager is needed to do so
3. A manager determine the timeline to finish any job 

So, A manager is needed