Treasurer Joe Hockey has emerged as the spine of a government that, a little like the Howard government, has arrived in office on the back of community unhappiness with its predecessor but unsure what it actually wants to achieve once it’s finished pulling down Labor’s work. Hockey’s resolute holding of the line on rent-seeking, after the disgrace of the GrainCorp decision, is welcome. But his salesmanship is letting him down. And, worse, so is his consistency.