Is anyone mourning the No Child Left Behind Act? Its clumsy regulations and harshly punitive measures against low-performing schools left many, many students behind and worsened education in communities around the nation. But the Every Student Succeeds Act, which President Obama signed into law Thursday to replace it, is even more of a lie. This measure doesn’t even pretend to create situations in which large numbers of academically struggling students will succeed, let alone all or even most of them.

As satisfying as it is to see NCLB go away at long last — and even more to be rid of the Obama administration’s clumsy waiver program for states seeking a way out of the law’s requirements — this new act is a compromise that benefits pretty much everyone but the students most in need of improved schools. Although it requires annual testing to continue for third- through eighth-graders and once for high-schoolers, it abandons federal curriculum and performance standards in favor of greater state autonomy.

As a result, it leaves entirely squishy what sorts of educational standards states are expected to set, and what steps even the worst schools will have to take to show they’re improving. It merely calls for states to make some effort to improve the lowest performers. The many schools that are simply mediocre are completely off the hook.

Many were the constituencies that came to detest NCLB, and often for good reasons. Teachers and their unions hated rigid improvement requirements that punished even hardworking educators and their schools, as well as Obama administration rules that forced states to use standardized test scores as a major factor in measuring a teacher’s worth if they wanted to win a waiver from the law. Middle-class parents whose children already attended schools that were fairly good or better resented the relentless focus on fill-in-the-bubble tests; education in science, the arts, writing and critical thinking suffered. And conservatives believed the federal interference in curriculum and standards impinged on states’ rights.

The biggest winners in the law’s demise, though, are the politicians who crafted its replacement, which they can cite as an example of the compromises they’re capable of achieving. Both sides get something to bring home to their constituents: a reduced federal role to please Republicans, a backing away from most teacher accountability rules for Democrats aligned with the teachers’ unions. Their concerns were legitimate, but make no mistake — this isn’t a win-win situation. The losers are disadvantaged students. The Every Student Succeeds Act will make it hard to even identify the schools that need intervention, by allowing states to rate success by such vague measures as school climate, parent involvement and teacher engagement.

The Every Student Succeeds Act hands almost all the authority back to the states, so the only hope for improving schools at this point is that states will step into the void with helpful, meaningful improvement plans for their underperforming institutions. The harsh disciplinary measurements under NCLB are well left behind; the firings and turnarounds were often unfair and, in the end, not very effective. But a new law should be more than a repudiation of the old; it should provide a blueprint for improving educational outcomes. The federal government has a right and a responsibility to ensure that it’s getting its money’s worth for the billions of dollars it invests in low-income schools.