New PMP Question & Answers with explanation

Recently, you promoted your star programmer, Sam, to lead the development team. Sam was a fantastic software coder, and you thought the promotion would mean that he could now share his expertise with the other development team members. However, you are surprised to learn that the performance of Sam in his new role is not meeting your expectations. Which empirical rule did you forget while considering the promotion of Sam?

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While conducting a brainstorming session to identify stakeholders, a process manager disagrees with you on a decision you made regarding the influence and impact of each stakeholder on the project. He even makes some comments against you in front of other stakeholders. As a senior project manager, what should be your immediate response?
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One of your team leaders informs you that a team member criticizes him constantly about the allocation of tasks. The team leader also asserts that this team member is also responsible for the delay of many tasks, leading to delays in the project schedule. What action should you take as a project manager?
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Two of your team members are constantly arguing with each other about work assignments. Due to their attitude, the project is delayed, and pressure is building on other team members. What should you do?
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You are in a meeting with your senior manager, who is helping you to organize and manage a team of IT people from diverse backgrounds. While you are discussing the creativity and breakthrough performance your team is demonstrating now, your senior manager indicates that your team has moved from the storming to the performing stage. Which of the following describes the characteristics of the performing stage?
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