No. 89-4718. June 19, 1990. Murphy J. Foster, III, Breazeale, Sachse Wilson, Baton Rouge, La., for petitioner, cross-respondent. Paul J. Spielberg and Aileen Armstrong, Deputy Associate Gen. Counsel, N.L.R.B., Washington, D.C., for respondent, cross-petitioner. Joseph G. Norton, Acting Director, Labor Relations Bd., New Orleans, La., for other interested parties. Petition for Review and Cross Application for Enforcement of an Order of the National Labor Relations Board. Before THORNBERRY, GEE, and