Council, by ordinance, may create, change and abolish boards, commissions, offices, departments or agencies, except as provided by State statutes. Council, by ordinance or resolution, may assign additional functions or duties to boards, commissions, offices, departments or agencies established by it or by this Charter, but may not discontinue or assign to any other board, commission, office, department or agency any function or duty assigned by this Charter to a particular board, commission, department, office or agency.