There shall be a board of park and recreation commissioners consisting of five (5) members elected for terms of three years each, so arranged that the term of office of as nearly an equal number of members as is possible shall expire each year. The board of park and recreation commissioners shall conduct and promote recreation, play, sport, physical education and other programs to meet the leisure time needs of the community. The board of park and recreation commissioners shall have general charge and management of the town playing fields, parks, public lawns and landscaped areas, and the town pool and of all property of the town relating thereto, in coordination with the Town Manager. The board of park and recreation commissioners shall have all of the powers and duties which are given to boards of park and recreation commissioners under the constitution and laws of the Commonwealth of Massachusetts, and shall have such additional powers and duties as may be authorized by the charter, by by-law or by other vote of the town meeting.