A periodic review of Army capabilities is sparking changes in how the service aligns its network-related acquisitions, according to the head of Training and Doctrine Command. Gen. David Perkins last week said the Army is beginning to base network buys on such factors as power consumption, ease of use and expeditionary deployment of the equipment. One of the service's biggest challenges, reducing fuel consumption, is linked directly to tactical operation centers, which are "very large; they have lots of wires...