NCLB unnecessary?

And what was the NEA's Mr. Weaver saying about NCLB not improving education--

"These are extraordinary results that are getting attention across the country. These nine schools are among the lowest 20 in the state of Tennessee for the last three years they've out gained 90, 95 percent of all schools in Tennessee. They are closing the achievement gap and just making exceptional gains." From WDEF in Chattanooga

I'm not persuaded that we'd really know there is/was a problem or that there had been improvement if someone hadn't pushed some sort of accountability on schools. NCLB isn't perfect, by a long shot, but it's better than nothing.