The factory director accepted the operators’ conditions. One month later, incidents for review and replacement of faulty parts had been reduced by 60 percent and production levels had risen by 20 percent, although operators felt that there was still room for improvement. In a further meeting with the director of the factory, they proposed to take care of the defective parts that they could repair themselves.

The factory director decided to give the operators another opportunity, trying the new arrangement for one week. A month later, the incidents of revision and replacement of defective parts were reduced by 90 percent and for the first time in a long period, projected levels of production were met and established premiums were earned. However, six months later, the factory director decided to return to the old system, due to the enormous pressure he was receiving from other areas of the company.