The department shall adopt:
(1) A classification plan and a pay plan consisting of pay bands appropriate to the positions included in the Selected Exempt Service and which provides for salary increases based on performance. Such pay bands shall be designed to attract and retain qualified personnel for the Selected Exempt Service.
(2) A pay plan and benefit package for the Selected Exempt Service which provides for greater pay and benefits overall than are provided for the Career Service and less pay and benefits overall than are provided for the Senior Management Service.