By following this approach, the company developed customer loyalty, as product development was well above average. The incentive management plan was a model for achieving high worker productivity. The legacy left by the founders has allowed the company to be successful by obtaining greater profits; therefore, continue to provide bonuses that keep employee morale high and very little, if any, staff turnover. Any employee leaving the company was for retirement or something more attractive than what they were getting as a Lincoln employee. The performance appraisal system, in order to maintain maximum productivity, employee performance and productivity were the keys to the company's goal. . Middle management (supervisors) retained "record keeping duties". The performance evaluation of employees was carried out twice a year and focused on the criteria of quality, "ideas of reliability and cooperation" and "result". Commitment of workers to work efficiently is highly practiced. Education policy was key to improving employee performance, so was a welding school