No. 95-1075 Argued En Banc January 29, 1997 Decided May 20, 1997 Robert G. Hulteng, argued the cause for petitioner, with whom Robert Leinwand, San Francisco, CA, was on the briefs. Peter D. Winkler, Supervisory Attorney, National Labor Relations Board, Washington, DC, argued the cause for respondent, with whom Linda R. Sher, Associate General Counsel, Aileen A. Armstrong, Deputy Associate General Counsel, Washington, DC, and Vincent J. Falvo, Jr., Attorney, Utica, NY, were on the brief. Linda Dreeben