Romney has an unsolved issue problem: He needs a big issue or vision to give purpose and a framework to his campaign. As things stand, his overriding issue is himself. He’ll revive the economy. Why? Because he says he will. That won’t cut against Obama. "My vision for free enterprise is to return entrepreneurship to the genius and creativity of the American people," Romney said in his victory speech. Fine, but how will he do that? He didn’t say.