When an organization is assessing the use of agile delivery approaches and a decision is made to shift from Scrum to a predictive approach, it is essential for the project manager to define a project management plan that reflects this new approach. This involves updating or creating new plans to cover aspects such as scope, schedule, cost, quality, resources, communications, risk, procurement, and stakeholder engagement to align with the predictive methodology. The project management plan serves as a roadmap for the project and guides the team on how to execute, monitor, and control the project. It is critical to ensure that the plan is comprehensive and integrates all aspects of the project management processes and knowledge areas as outlined in the PMBOKGuide.
: PMBOKGuide - Sixth Edition, Section 4.2 Develop Project Management Plan; Agile Practice Guide.

In the scenario described, the project team is overwhelmed by the volume of knowledge-sharing emails, which indicates that the current method of communication is not effective. A pull communication method allows team members to access information as needed, rather than being bombarded with emails. This method enables team members to manage their time and resources more effectively by seeking out knowledge when it is convenient for them, thus reducing the overload and improving the manageability of information.
References: The solution aligns with best practices in project management communication strategies, where pull communication is recommended in situations where information overload is an issue. This approach is supported by resources on project management communication methods, which suggest that pull communication can help alleviate the problem of information overload by allowing team members to access information on demand1234.

The project charter is a document that formally authorizes a project or a phase and documents initial requirements that satisfy the stakeholder's needs and expectations. It provides the project manager with the authority to apply organizational resources to project activities. When a new project manager is assigned to a project, they should refer to the project charter to understand the project objectives, key stakeholders, risks, and the authority delegated to them. References: Project Management Professional (PMP) Reference Materials12.

When a project manager identifies a risk with a high probability of occurring, the appropriate response is to monitor the risk closely. This involves asking the team to keep an eye on the risk and provide alerts if it becomes an issue. This approach is aligned with the proactive risk management practices advocated by PMI, where risks are continuously monitored and managed throughout the project lifecycle. It allows the project team to respond quickly to changes and implement risk response plans as necessary.
References:
The PMBOK Guide - Sixth Edition provides guidelines on risk management processes which include monitoring risks. It emphasizes the importance of keeping track of identified risks, monitoring residual risks, and reviewing the execution of risk responses while evaluating their effectiveness throughout the project lifecycle1.
The Practice Standard for Project Risk Management by PMI also supports this approach, detailing how monitoring and controlling risks is a critical part of the risk management process2.
Additionally, the PMP Exam Content Outline from PMI outlines the tasks associated with monitoring risks, which includes implementing risk response plans, tracking identified risks, and evaluating risk process effectiveness over the project's duration3.