The General Assembly finds and declares that the present system of advising the Governor and the State Fiscal Accountability Authority and General Assembly on economic trends has, at times, developed in a fragmented manner, and that a unified system of dealing with the collection, analysis, interpretation, and presentation of matters relative to the economy is urgently needed for the orderly development of projections and forecasts as relates to revenues and expenditures for a specified period of time. It is the purpose of this provision to establish an organizational and procedural framework governing formulation, evaluation and continuing review of all state revenues and expenditures for all state programs; and to establish general policy governing the administration of the Board of Economic Advisors and the Revenue and Fiscal Affairs Office.