The project manager should take proactive steps to restore the team morale and trust after an incident that affects the team dynamics. Hosting a special meeting to talk about what happened is a way to facilitate open communication, address the root causes of the conflict, and resolve any issues or grievances among the team members. Conducting a team-building workshop is a way to enhance the team cohesion, collaboration, and performance by engaging the team in fun and interactive activities that foster positive relationships and mutual respect. These two actions are consistent with the principle of leading with empathy and respect, which is part of the PMI Talent Triangle. References:
* PMBOK Guide 7th Edition, page 133
* Agile Practice Guide, page 48
* PMI Talent Triangle 1

Schedule reserves are the amount of time allocated for unforeseen risks or delays in a project. They are usually calculated based on the level of uncertainty and complexity of the project. In a hybrid project, where both agile and predictive approaches are used, the project manager should reconsider the necessary schedule reserves based on the progress and performance of each module. By doing so, the project manager can identify the critical path, prioritize the work, and adjust the schedule accordingly. This can help to take the schedule back and accelerate the ROI of the project. References: PMBOK Guide 7th Edition, Chapter
8.3.3.2; Agile Practice Guide, Section 3.2.2.

When faced with internal team conflicts, especially between a team lead and an experienced engineer, it is important to address the issue collectively. Organizing a meeting with the project team allows for open communication and collaborative problem-solving. This aligns with the PMBOK Guide's principles of conflict resolution, which include promoting a team environment where issues can be discussed and resolved in a manner that respects all parties' perspectives1. It also adheres to the Professional in Business Analysis (PMI-PBA) guidelines, which emphasize the importance of addressing conflicts directly and seeking a resolution that supports project delivery2.
References:
PMBOK Guide - Sixth Edition, Section 9.6 - Manage Team
Professional in Business Analysis (PMI-PBA) Reference Materials

In a large transformation project using agile practices, promoting new values to the project team can be done effectively through the following methods:
* Add a user story during sprint planning that gives recognition to behaviors that are aligned with the new values (A): This approach allows the team to understand and internalize the new values through practical application. It also provides an opportunity to recognize and reward behaviors that align with these values1.
* Give recognition to team members' behaviors that are aligned with the new values during the sprint retrospectives (D): Retrospectives provide a platform for reflection and improvement. Recognizing behaviors that align with the new values during these sessions can reinforce the importance of these values and encourage their adoption1.
: 1

Explanation: