The Director of Administration shall be a graduate of an accredited college or university with a minimum of a bachelors degree in arts or science attesting to the successful completion of the required training in a pertinent field, such as business or public administration. In addition to the educational requirements, the Director of Administration shall have a minimum of five (5) years' experience in public, commercial, or industrial administration exhibiting the necessary skills in management and supervisory abilities, as determined by the Mayor.