Wordnik contains many alternatives, but I like this definition for the noun velleity* the best:
a mere wish, unaccompanied by effort to obtain
The context for the use of this word is whether the newish Common Core standards will survive once people recognize the scope of the problem:
In that case, Common Core would survive, but only as NCLB survives—as a velleity, a whiff of a hint of a memory of a gesture toward an aspiration for excellence.
* BTW: velleity is sufficiently obscure that Microsoft’s spellchecker doesn’t include it.