Nos. 99-4124(L), 99-4152(XAP). Argued: March 13, 2000. Decided: March 27, 2000. Petition for review of an order of the National Labor Relations Board finding that petitioner bargained with intervenor in bad faith on August 27, 1993, and ordering petitioner (1) to reinstate its proposal for a collective-bargaining agreement as it stood prior to its withdrawal in bad faith; (2) to sign an agreement, if the reinstated proposal is accepted by intervenor; and (3) to give the agreement retroactive effect