On September 7, 2006, GAO testified before the Subcommittee on Defense, Committee on Appropriations, on recent trends in Department of Defense (DOD) contracting. Specifically, GAO testified about practices that undermine DOD's ability to establish sound business arrangements, particularly those involving the selection and oversight of DOD's contractors and their performance. This correspondence responds to a number of post-hearing questions relating to various issues, including measures that DOD can employ to ensure better contracting outcomes.