Approved for public release, distribution is unlimited / In the Federal Acquisition Regulations (FAR) Statement of Guiding Principles for the Federal Acquisition System, the vision of the Federal Acquisition System is to deliver best value products or services to the customer. Contracting Officers must achieve this while balancing the many competing interests of the stakeholders in the System. The paradox of efficiency vs. effectiveness can be found in the second sentence by the phrase "balancing the many competing interests in the System". This statement indicates the diverse interest of the many stakeholders involved in the System that in many instances prevent the Contracting Office from being efficient and effective. The Government Performance Results Act of 1993 also requires each agency to establish projected outcomes or results by which they will be evaluated against. This thesis examines various literature and existing measurement systems of field contracting offices to determine if we are properly evaluating efficiency and effectiveness. The thesis also utilizes the Organizational Configuration Model developed by Nancy Roberts to determine where field offices fit. The thesis identifies common themes found in metrics and draws conclusions based on that information. Finally, the researcher proposes a model for Field Contracting Offices to use for evaluating their efficiency and effectiveness. It is the researcher's hope that this thesis will be of benefit to all field contracting offices that struggle with determining their efficiency and effectiveness. Also, it is hoped that Systems Commands find some useful information in this thesis. / Civilian, Department of the Navy