https://www.defense.gov/News/Releases/Release/Article/3829985/department-of-defense-announces-results-of-sentinel-nunn-mccurdy-review/

Quote:

Based on the results of the review, Dr. William A. LaPlante, the USD(A&S) who served as the DoD lead for the review and is the Milestone Decision Authority for the program, certified that the Sentinel program met the statutory criteria to continue. This criteria included that:

•    Continuation of the Sentinel program is essential to national security;
•    There are no alternatives to the program which will provide acceptable capability to meet the joint requirements at less cost;
•    The new estimates of the program acquisition unit cost or procurement unit cost have been determined by the Director of Cost Assessment and Program Evaluation (CAPE) to be reasonable;
•    The program is a higher priority than programs whose funding must be reduced to accommodate the growth in cost of the program; and
•    The management structure for the program is adequate to manage and control program acquisition unit cost or procurement unit cost.

In certifying the program to continue, LaPlante rescinded Sentinel's Milestone B approval, or the point at which an acquisition program is authorized to enter the engineering and manufacturing development phase. He also directed the Air Force to restructure the Sentinel program to address the root causes of the breach and ensure an appropriate management structure is in place to control costs in the future.