Determine requirements and competencies
Retaining the best employees is one of the greatest challenges in business today. No matter the industry, we all want to know the secret to long-term retention. Well, there is no secret. Employee retention begins with the recruiting, interviewing, and hiring process. As a recruiter you want to attract the right people for the job, so it's important that you offer to help the hiring manager write or revise a job description, which clearly differentiates between minimum requirements and core competencies, which are two separate areas that need clarification.
Minimum requirements are your GPS to a successful recruit and should be agreed upon by everyone in the interview process. Each time a job becomes available the requisition needs to be updated to include current minimum requirements. Are they mandatory or preferred? Think about the last job you had and how different it was from your first day of employment to your last. As your manager realized you had additional talents and capabilities you were given additional responsibilities.
Source: https://www.linkedin.com/learning/align-recruiting-with-job-requirements/determine-requirements-and-competencies