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.

According to the PMBOKGuide, one of the key skills of a project manager is to manage stakeholder engagement, which includes facilitating collaboration among stakeholders1. Collaboration is essential for global projects, as it enables effective communication, efficiency, decision-making, and creativity among team members from different regions, cultures, and backgrounds2. However, collaboration can also be challenging due to factors such as time zones, language barriers, and cultural differences3. Therefore, the project manager should coordinate a meeting to understand the situation and resolve any conflicts that may arise among the team members. By doing so, the project manager can foster trust, respect, and mutual understanding among the team, and ensure that they are aligned with the project objectives and expectations2. The project manager can use various techniques to facilitate the meeting, such as active listening, brainstorming, negotiation, and problem-solving1. References:
* 1: PMBOKGuide - 4th Edition, Chapter 13: Stakeholder Management
* 2: The Global Project Management Framework
* 3: Advantages and Challenges of Global Team Collaboration

According to the Project Management Professional (PMP) guidelines, once a project manager has been authorized to begin a project, the next step is to assemble the project team. The project manager should select team members based on their skills or potential to contribute to the project's success. This is crucial because having a team with the right skills and potential can significantly enhance the project's chances of success. References: PMBOK Guide, Project Team Development. Please refer to the specific sections in the PMBOK Guide and PMP study materials for more detailed information.

When a phase of a project takes longer than initially anticipated, it's important for the project manager to understand why this happened in order to prevent similar issues in the future1. Organizing a root cause analysis (RCA) workshop allows the project team to identify the underlying cause of the delay1. This understanding can then be used to implement corrective actions to prevent similar delays in the future1. This approach not only addresses the immediate concern of the stakeholders but also contributes to the continuous improvement of the project management process1. References: PMI