"However, given the nature and size of the respondent's undertaking and the number of employees at grade 3 at least in the Leicester area in its central division, we consider that the pool from which the redundant employee was to be selected was not one that any reasonable employer would have chosen, i.e. the remaining three Grade 3 support supply staff at Glenfield.
"... that in judging the reasonableness of the employer's conduct we must not substitute our decision as to what was the right course to adopt for that of the employer and that our function is to determine whether in the particular circumstances of each case the decision to dismiss the employee fell within the band of reasonable responses which a reasonable employer might have adopted. If the dismissal falls within the band the dismissal is fair; if the dismissal falls outside the band the dismissal is unfair."