According to the PMBOK Guide, the project lead should manage stakeholder expectations and engagement throughout the project life cycle. The project lead should also support the agile team's decisions and authority regarding the product scope and releases. The agile team is responsible for delivering valuable and functional products to the customer in short iterations. Therefore, the project lead should work with the stakeholder to understand what the concerns are while at the same time conveying the benefits of incremental deliveries. The project lead should also communicate the value proposition and the vision of the product to the stakeholder and seek their feedback and collaboration. References: PMBOK Guide, 6th edition, pages 18, 37, 51-52, 286-
287.