What should be developed to ensure the clear division of roles and expectations for a team consisting of both internal and external resources?

Which of the following is an output of Verify Scope?

You assigned staff members to activities, estimated work and scheduled your project. Then, you depicted the following resource histogram for your staff:
Exhibit:

What is the diagram telling you?

You are in the process of planning a project and found that stakeholders often have varying objectives and requirements which makes it hard create a plan in such way that all objectives will be met. What is probably most helpful to ensure comm. understanding?

During a project review meeting, a team member disagrees with a collage on the project's status. Key millstones are dependent upon the completion of these two team members' tasks. The conflict is negatively influencing other team members, who now doubt their own.
What should the project manager do?