Gaddy worked as a program manager with the Air Force Audit Agency, where his special areas of responsibility included evaluating and recommending corrective actions for the Air Force's financial management functions for the general, stock, and industrial funds. Gaddy then served as the assistant for Fiscal Control, Office of the Assistant Secretary of the Air Force (Financial Management and Comptroller), where he directed departmental policy for funds distribution and analysis, and was also responsible for oversight, assessment, and corrective actions for problems and deficiencies identified within the Department of the Air Force's fiscal operations.

 

Gaddy was appointed to DFAS in 1991, serving as the director for Departmental Accounting at the Denver Center. His responsibilities included managing and overseeing all departmental reporting for the U.S. Air Force's general and working capital funds. He implemented DOD financial reporting policies, reviewed and analyzed the U.S. Air Force's financial reports and implemented the Chief Financial Officers Act.

 

Thereafter, he was the deputy director for Policy and Systems, Directorate for Accounting, DFAS Arlington. His responsibilities included the management and oversight of all DOD accounting operations, the development of procedures to implement accounting standards and policies, and the preparation and review of accounting and financial reports.

 

Gaddy was the deputy director for the DFAS Denver Center and Special Assistant for U.S. Transportation Command and Accounting at the Denver Center and from February 1 until August 11, 2000, promoted to director of DFAS Denver from August 11 to October, 2000. He took over as director of DFAS in May 2004.