Sgt. Maj. of the Army Michael A. Grinston, center, remotely drives a pre-prototype Robotic Combat Vehicle from inside a Mission Enabling Technologies Demonstrator at Fort Carson, Colorado, in August. Soldiers provided feedback on the early combat vehicle platforms. If Army contracting is to keep pace with this process, its culture will have to change to play a more effective role, critics have said. (Photo by Sgt. Liane Hatch, 3/4 ID)