SCRUM teams consist of the Product Owner, the Scrum Master, and team members (developers, testers, user interface engineers etc.) The Product

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Owner is responsible for representing the interest of the client for whom the product is being made. Hence, the ScrumMaster negotiates the scope of a
SCRUM with the Product Owner. In addition, the ScrumMaster acts as an interface with the team and the Product Owner.
The ScrumMaster is responsible for empowering the team to control over how they will perform their work. The team looks up to the ScrumMaster as a top athlete would look up to a sports coach. It is not only about knowing the SCRUM process, but also motivation and understanding the team’s psychology. The ScrumMaster's role requires more than basic project management skills.