"12. On the basis of those facts we are satisfied that the reason for dismissal was the respondents' loss of the contract with British Coal, as a result of which the requirements of the respondents' business for employees to carry out work of the sort of which the applicant was capable had diminished. That reason relates to redundancy and that is an admissible reason withinsection 57(2) of the Employment Protection (Consolidation) Act 1978 . We therefore have had to go on to decide whether the respondents acted reasonably in treating that as a sufficient reason to dismiss the applicant. We have taken as our starting point the words ofsection 57(3) of the 1978 Act . We have considered the size and administrative resources of the respondents' undertaking and we have reminded ourselves that it is for us to say whether the actions of the respondent fell within the range of a reasonable employer. We find that the respondents correctly identified the unit of selection, namely, those 23 employed on the Manton contract and we find that the selection criteria to which we have already referred were objective and could be verified with reference to company records. That leaves the manner of selection which Miss Davies, on behalf of the applicant, has forcefully argued was unfair. In making the actual selection we are satisfied that the union to which Mr Dalzell belonged was invited to consult with the respondents but chose not to do so. We are satisfied that from the start, when the pool consisted of 23 men, the respondents made strenuous efforts to find suitable alternative employment. We accept that Mr Ellis, who made the decision to dismiss or deploy in all but the first two cases, got to know all the candidates personally and well. He took into account the strengths and weaknesses of each man. As he said when he gave evidence: