In Scrum, the responsibilities of the project manager are shared among the product owner, scrum...

"Inspect and adapt" are two of the three pillars in Scrum. The roles in Scrum are divided among the product owner, scrum master, and development team in a way that makes it possible to inspect the efficiency and adapt the way responsibilities are shared to maximize efficiency if needed.

Scrum is a collaboration framework that encourages the Scrum team - the product owner, scrum master, and development team - to collaborate in a way that fosters fast value creation with respect for each team member's opinions and individual preferences.

The product owner is responsible for the product backlog and long-term plans, the scrum master is responsible for the Scrum process, and the development team is responsible for the sprint backlog and progress toward the sprint goal. This facilitates clear accountability and effective value creation.

The product owner is responsible for the product and sprint backlog. The scrum master follows up on progress, and the development team estimates and decomposes the backlog items into manageable pieces. This ensures each person has the roles they are best at and feel most comfortable with.