Using Metrics to Create a Six-Sigma Hiring Process

Read the article, Using Metrics to Create a Six-Sigma Hiring Process, by Lou Adler. Discuss the key elements of the article and explain if you agree/disagree with the author.
Link: https://www.ere.net/using-metrics-to-create-a-six-sigma-hiring-process/
When answering this question, please change the subject line to Topic 1: Six-Sigma Hiring Process