Please answer question thoroughly and exact, with references. Thank you!

• You are a project manager for a large hospitality firm (e.g., Hilton, Sheraton, Marriott International, etc.). You will be in charge of the firm’s HQ office relocation. You have been asked to speak to the HR staff about the move and many of them have very little understanding of project management. Also, they are fearful that this project will end up being a failure since other projects have failed at the firm. Explain to them the key elements of project management and its relationship to human resources management (HRM). Be sure that your explanation curtails their fears of project management. 
• Support your comments with authoritative sources.