The assumptions that temporary workers will cost more, be of a poorer standard, be untrained and have no loyalty are untrue.  Let's look at these untrue statements:

• Workers will be of a poorer standard
  No, the workers are sourced from the same employment market from which any firm sources workers.  The training given to firms workers make them more efficient in the job they are doing at that firm, but does it make them better workers?  If the temporary workers were given the same training, wouldn't it be true to say that they would be just as skilled and efficient in that job?
   
• Workers will be untrained
  This will be true that they are untrained in the work you are wanting done in your specific factory, but you will find that many temporary workers have skills and experience in many more areas than a normal factory worker.
   
• Workers will have no loyalty
  Partly a true statement that the temporary workers' loyalty is not going to be with a company that employs them for a short period of time.  However, given the opportunity to work for many months, or even years with a firm, their loyalty to the firm will be the same as that of any employee.
   
• It will cost more
  This is an area that stops firms using workers.  When looked at for short term use, the temporary worker may look more expensive.  But are they?  How much would it cost a firm to employ someone for two to three weeks when you take into account the advertising, personnel, interviewing and payroll costs?  The answer is that the firm saves money on using agency temporary workers.