A project manager was just assigned to a project as the leader of an experienced...

According to the PMI-PBA guide, one of the key competencies of a business analyst is to facilitate collaboration and negotiation among stakeholders1. This is especially important in agile projects, where the business analyst may also act as the project manager or product owner2. The PMBOK guide also states that the project manager should foster a collaborative project team environment that enhances individual and team performance3. Therefore, the best way for the project manager to influence the agile team is to express trust in their ability to deliver value and meet the project objectives, rather than imposing authority, control, or additional resources. References:

1: PMI-PBA guide, page 16

2: PMI-PBA guide, page 23

3: PMBOK guide, page 59