To kick off the project, especially when the idea is not yet clear, the agile lead should focus on understanding the needs and challenges of the end users-HR in this case. By applying the empathy map technique, the team can gather insights into the users' experiences, needs, and pain points. This helps in building a more focused and user-centered approach to solving the problem, which is the foundation for developing a product backlog.
Engaging stakeholders early and understanding the problem space will clarify the project direction and lay the groundwork for creating meaningful user stories.

The product owner is responsible for managing the product backlog and ensuring that it reflects the priorities and vision of the product. While the Scrum team can suggest changes or improvements during the refinement process, the product owner has the final say on whatchanges are made to the backlog. This ensures that the product backlog aligns with business needs, stakeholder expectations, and the overall product vision.
Therefore, the product owner can reject changes to the backlog if they believe the changes do not align with these priorities.