The head of a Detroit labor union said yesterday that the city’s state-appointed emergency manager did not negotiate with all of the 33 unions in a coalition representing most of the city’s civilian workforce, Reuters reporters reported yesterday. Al Garrett, president of the American Federation of State, County and Municipal Employees Council 25, contested statements by emergency manager Kevyn Orr that he bent over backwards to work with creditors, including the city’s pension funds, before filing a bankruptcy petition for Detroit in federal court last Thursday.