The federal government spends as much as $90 billion a year on information technology, but much of that money is wasted on maintaining costly and duplicative legacy systems that are often 10 to 20 years out of date, according to critics on both sides of the aisle. One reason is a lack of funds for modernizing the government's massive technology infrastructure. But another reason is the highly fragmented system that many agencies have traditionally used to oversee their IT. For example, many agencies have numerous chief information officers, not just one, to run their IT. Those CIOs often don't report to agency heads or coordinate effectively, and they sometimes have little incentive or authority to implement comprehensive modernization plans, administration officials said.