Big jump found in school failures under NCLB--the number of schools nationwide that are failing to meet achievement goals under the No Child Left Behind Act has grown by 50 percent since last year, according to a study by the Center on Education Policy. The report, "A Call to Restructure Restructuring," charges that the U.S. Department of Education has offered "little guidance on what to do about persistently struggling schools," which now number 3,500 across the country. According to the report, once a school enters restructuring, it rarely leaves that status, and adequate funding for school overhauls and qualified teaching to bolster achievement are often in short supply. As a law, NCLB is "like a first draft of a paper," says Jack Jennings, president of the center, "and we don't think it's developed very well."