The Pentagon since 2011 has been unable to prove that a series of internal efficiency initiatives have saved billions and its latest effort may be headed for a significant disruption. The Government Accountability Office recently released a report reviewing five Defense Department efficiency initiatives, beginning with one announced by then-Defense Secretary Bob Gates in 2010, and found that all of DOD's cost-saving claims are unreliable. "DOD has taken some steps to monitor and evaluate the results of its efficiency initiatives,...