By Lauren C. Williams NOTE: This article was first published on FCW.com. The Army made national news when it announced a deal to buy more than 120,000 augmented reality headsets from Microsoft for $22 billion in order to enhance soldier training and situational awareness. The Integrated Visual Augmentation System, which has been in the works for more than three years and has functions like radio communications and high-resolution night and thermal sensors, is undeniably cool. But there’s more to the potentially multibillion deal, which could mark a potential shift in how the Defense Department can and should buy new technology.