law: 6. Vacancies, etc., not to invalidate proceedings of the Board or the Executive Committee.-
  No act or proceeding of the Board or the Executive Committee shall be invalidated by reason of-
  (a) any vacancy in the Board or the Executive Committee;
  (b) any defect in the composition of, or in any appointment to, the Board or the Executive Committee;
  (c) any irregularity in the procedure of the Board or the Executive Committee not affecting the merits of the case.