Train workers in duties and policies Conduct performance reviews Perform same duties as workers supervised Maintain inventory of stored material Resolve work problems and recommend measures to improve work methods Requisition materials and supplies Organize and co-ordinate production Process purchases Ensure smooth operation of computer systems, equipment and machinery, and arrange for maintenance and repair work Ensure accuracy and compliance to accounting standards, procedures and internal control Supervise, co-ordinate and schedule (and possibly review) activities of workers Oversee the scheduling and dispatching of vehicles and goods