No. 86-2484. Argued May 28, 1987. Decided February 22, 1988. Elaine Patrick, Susan Williams and Elliott Moore, N.L.R.B., Washington, D.C., for petitioner. Donald W. Fisher, Donald W. Fisher Co., L.P.A., Toledo, Ohio, for respondents. Before CUMMINGS, CUDAHY and COFFEY, Circuit Judges. CUDAHY, Circuit Judge. The National Labor Relations Board (the "Board" or the "NLRB") petitions for enforcement of its order prohibiting the respondent labor unions from restraining their members from resigning in anticipation