Of the tips recommended to HR professionals in the video, which one do see as the most important? Explain.

Watch the following video on How to Conduct an Interview and answer the following four questions:

Of the tips recommended to HR professionals in the video, which one do see as the most important? Explain.
Have you been with a company or organization that chose to hire from within (internal selection) for a mid-level or management position? Explain and discuss the position.
Did HR conduct the interviews for the position or was a promotion panel or review board formed to select for the position? If so, explain. If not, who made the final decision on selecting the best candidate for the job?
Who should make the final decision on selecting the best candidate for the job? Management, HR, or a combination of both? Explain in detail.