Read the case titled "The 3 Essential Jobs That Most Retention Programs Ignore" written by:

Lynn Cowart, Cile Johnson and Beverly Kaye, Harvard Business Review, 2018

Answer the following questions:

1. Knowing high performance job function is important for business organization. Does the propose suggestion by Lynn Cowart, Cile Johnson and Beverly Kaye is valid? Justify your answer.
2. Discuss why compensation to the key employees is a cause of concern? Substantially Justify your answer.
3. Critically discuss the benefits and cost of employee turnover.

Try to be as detailed as possible