Among the purposes of a commission are discouraging urban sprawl, preserving open-space and prime agricultural lands, efficiently providing government services, and encouraging the orderly formation and development of local agencies based upon local conditions and circumstances. One of the objects of the commission is to make studies and to obtain and furnish information which will contribute to the logical and reasonable development of local agencies in each county and to shape the development of local agencies so as to advantageously provide for the present and future needs of each county and its communities. When the formation of a new government entity is proposed, a commission shall make a determination as to whether existing agencies can feasibly provide the needed service or services in a more efficient and accountable manner. If a new single-purpose agency is deemed necessary, the commission shall consider reorganization with other single-purpose agencies that provide related services.