"What we do find is that there were meetings at which the terms of the new contract were explained to the staff, and that it was made clear at these meetings that those who were not prepared to accept the reduced hours of work which the Respondents were offering at this contract, could have the opportunity of transferring to other work which the Respondents offered them and which would be either nights or day for periods of 40 hours. We find that it was made plain to the staff that these positions were available."