When a risk materializes and becomes an issue, the project manager should work with the relevant stakeholders to implement the risk response plan that was prepared during the project's planning phase. This is in line with the PMI's principles, which suggest that risks should have predefined response plans that can be activated when they occur. The implementation of the risk response plan is a proactive step to address the issue and mitigate its impact on the project1.
References:
Project Management Institute (PMI) standards and publications.
PMBOK Guide - Sixth Edition.
"Plan Risk Response for Your Projects" - Project Management Academy2.
"PMP Exam Strategies for Risk Response: Mitigate Risk, Avoid, or Transfer" - Project Management Academy3.
"Risks vs Issues: Why most projects fail" - PMI4.
"The Difference Between Risk and Issues in Project Management" - iZenBridge5.

When a project team faces collaboration challenges, especially when all members are in the same time zone, it suggests that there may be issues beyond just scheduling. The project manager should examine the team's virtual needs to identify any gaps in communication tools, technology, or processes that may be hindering effective collaboration. This aligns with the PMBOK guide's emphasis on the project manager's role in ensuring that the team has the appropriate resources and capabilities to perform their work1. Additionally, understanding the team's virtual needs is a critical aspect of business analysis, as it involves assessing how team members interact with each other and with the project's systems and processes2.
: The PMBOK Guide provides guidance on managing remote teams and emphasizes the importance of addressing their specific needs for successful collaboration1. The Professional in Business Analysis materials also highlight the necessity of understanding and supporting the virtual environment to facilitate effective teamwork2.

When a new stakeholder is assigned to a project and expresses concerns about the benefits of the deliverables, it is important to address these concerns directly and proactively. The benefits realization plan is designed to outline the activities necessary for achieving the planned benefits, including a timeline, tools, resources, and metrics for measuring progress. Reviewing this plan with the stakeholder can help clarify how the deliverables will contribute to the project's benefits and align with the stakeholder's expectations. This approach is supported by the Benefits Realization Management Framework, which emphasizes the importance of engaging stakeholders in understanding and supporting the benefits realization process. References: (Benefits Realization Management Framework, PMI1; Benefits Realization Management Practice Guide, PMI2; BrainBOK3; Project Management Templates4)

The project manager should plan a working session focusing on the scope, vision, and mission of the initiative, as this is the best way to increase the project's chances of success. By involving the research and development department and other relevant stakeholders in defining the project objectives, scope, and deliverables, the project manager can ensure that the product development aligns with the organization's strategic goals and meets the customer's needs and expectations. This will also help the project manager to establish a clear and shared understanding of the project's purpose, value, and benefits, and foster a collaborative and innovative environment.

A change log is a document that contains the list of changes that are made during the project. It tracks the progress of each change based on its review, approval, implementation, and closure. A change log is a useful tool for communicating the status of change requests to the stakeholders, as it shows the impact and outcome of each change. A risk log, a backlog, and an issue log are different documents that serve different purposes.
A risk log records the identified risks, their probability, impact, and response strategies. A backlog is a list of features or tasks that need to be completed in an agile project. An issue log records the issues that arise during the project, their causes, effects, and resolution. References:
* Change Log - Project Management Knowledge
* Change Log Template - Project Management Docs
* Risks, issues, and changes-help, I'm drowning in logs!