Allowing the resources to periodically choose on which team they would like to work is a technique that fosters self-organization and empowerment among the team members. It also helps to create cross-functional teams that can deliver value faster and more effectively. Self-organization is one of the key principles of agile project management, as it enables the team to adapt to changing requirements and customer needs. The project manager should not prevent the resources from choosing teams, as this would undermine their autonomy and motivation. The project manager should also not assume that the resources will always choose their favorite team, as this may not be the case. The project manager should not indicate that the team members have already been assigned to a team through workforce optimization, as this would imply that the team composition is fixed and cannot be changed. References: Project Management Professional Sample Questions, page 12, question 100. [A Guide to the Project Management Body of Knowledge (PMBOK Guide)], Sixth Edition, page 52, section 2.3.2. [Agile Practice Guide], page 14, section 2.1.2.