U.S. Federal fiscal law is about Congressional oversight of the Executive Branch, not principally toward getting the mission accomplished nor getting a good deal for the Government. Fiscal law frequently prevents Government agencies from signing agreements that commercial entities would sign. Therefore, fiscal law can constrain a Federal agency from the quickest, easiest, or cheapest way to accomplish its mission. This Constitutionally mandated oversight of the use of public funds is associated with the principle of checks and balances. A good working relationship and robust communication between the Executive and Legislative branches is the key to avoiding problems in this area.