Workforce Planning and Staffing

Write a narrative essay (minimum 1500 words minimum requirement) to address and discuss the questions and statements listed below. Use at least four scholarly sources with an APA formatted reference list.
How would you explain to your supervisor that the correlation between interview scores and new hire quality is low and persuade them to consider a new job applicant method?
What do staffing professionals need to know about measurement?
What are the least effective external assessment methods? Why?
Discuss the advantages and disadvantages of both structured and unstructured interviews?