Robert H. Jackson, Packard Motor Car Company v. National Labor Relations Board…
“ Even those who act for the employer in some matters, including the service of standing between management and manual labor, still have interests of their own as employees. Though the foreman is the faithful representative of the employer in maintaining a production schedule, his interest properly may be adverse to that of the employer when it comes to fixing his own wages, hours, seniority rights or working conditions. He does not lose his right to serve himself in these respects because he serves his master in others. ”
