An agile leader should ensure participation from all team members in the final phase of a complex project, as this will help to foster collaboration, communication, feedback, and alignment among the project stakeholders. Participation from all team members will also help to identify and resolve any integration issues, risks, or dependencies that may arise during the delivery stage. Participation from all team members will also promote a sense of ownership, accountability, and commitment to the project outcomes. Asking the client to attend all daily calls may not be feasible or necessary, as the client may have other priorities or constraints. Ensuring cross-departmental teams are colocated may not be possible or beneficial, as the project may involve remote or distributed teams, or different organizational cultures. Requesting additional project resources may not be the best option, as it may introduce new challenges such as coordination, training, or integration costs. References: PMBOK Guide, 7th edition, pages 99, 100, 101, 102.