Subject to the provisions of this Charter, the Council may adopt, by ordinance or resolution, an Administrative Code which shall provide in detail the organization of the Municipal government, and define the powers and duties of each organizational unit. Amendments to and revisions of the Administrative Code shall be made by Council. Where the Charter and the Administrative Code are silent, the officers and employees through the Manager of the Municipality shall have and may exercise all powers and duties provided for similar officers and employees by the general laws of Ohio applicable to general statutory plan municipalities. However, provisions of the Charter, ordinances, resolutions, and the Administrative Code shall supersede those of the State law in case of conflict.