Non-Bargaining Unit Employees Employees outside the bargaining unit will not perform work that is normally done by employees in the bargaining unit. However, nothing in this Agreement shall be construed as prohibiting foremen from doing work for purposes of employee instruction and evaluation, and equipment assessment, provided in so doing a lay-off of bargaining unit employees does not result, or in the case of an emergency when regular employees are not available, provided that every reasonable effort is made to find a replacement.