Require the Intelligence Community to consolidate it's business IT systems to a common platform. Right now, CIA, NGA, NSA, NRO, and others maintain their own unique (and often un-interoperable) IT systems. This could carry-over and expand to include financial management, ERP systems, etc. The agencies will claim they have unique requirements, but they aren't so unique that we cannot resolve and consolidate these requirements and reduce duplicative systems and maintenance contracts efforts. A one time outlay should have an ROI of less than two years for savings.
It just takes leadership and resolve to change the mindset of those stuck in their way of doing business. We cannot afford to continue this.