Md. Code, State Personnel and Pensions § 6–403

(a) Except as otherwise provided by law, a position in the Executive Branch of State government is in the management service if the position:

(1) primarily involves direct responsibility for the oversight and management of personnel and financial resources;

(2) requires the exercise of discretion and independent judgment; and

(3) is not in the executive service.

(b) The management service includes any other position that is determined by the Secretary to be in the management service.