Unwillingness to recruit professionals to the movement mirrors the unions’ similar neglect of supervisory workers. The National Labor Relations Act excludes managers from the protection of the law, and so unions came to believe that “management” was their main adversary and that supervisory workers included in bargaining units during representation elections would naturally vote against unionization. Rather than fighting for the right of managerial workers to be organized, they approved, or were indifferent to, the NLRA’s legal exception of them.