According “Applying Lean Principles to Your Business Process” (2016), application of lean management to the company is able to gain great control, efficiency and visibility for the departments. There are six principles of the lean management which can smoother the operations by increasing productivity, reduce costs, improve quality and satisfy the employees. Firstly, the organization should focus on the current target. Target can be a customer, or maybe an employee in the company. In this case study, Mitsuba Corporation is the company’s customer. Fulfill the Mitsuba Corporation’s requirements is the target that the company should concentrate. Therefore, the increasing product defects issues must resolve as soon as possible in order to continue good business relationship with Mitsuba Corporation. Secondly, figure out on how work actually gets done instead of just gets the work done right. When a person keep on working on the same thing, he or she might not be able to figure out the defects in the process. Therefore, it is better to ask a neutral person who is not familiar to the process to observe and record what they see in as much granular detail as possible. Their suggestions may be useful even though they are right off the bat. As in the case study, production department and inspection department assist the engineering team to resolve the high rejects issues.Thirdly, eliminate wasted steps and inefficiencies can have a great impact on productivity, even a little tiny step counts. For example, inspection team carries out the inspection prior to production and during production in order to avoid defects from happening. This might facilitate good flow of discussions between operators, ease all the communications of upstream or downstream process problems and remove domino effect from the defect source. Fourthly, keep the score consistently helps to ensure something is working out or not. Real-world testing can’t be takeover for all the analysis and estimating in the world. Therefore, every new process or newly updated process have to keep score accordingly. After the process repeatedly run for enough time, a decisive and confident decision will be produced. Just like the incident in the case study, the engineering team found a common cause that was generating the defects during the analysis. Therefore, they able to overcome the problem precisely. Fifthly, the best way to improve a process is to empower the employee who is actually doing the process. From that, it can also able to clarify the individual’s capability and perhaps their hidden skills. For instance, Mr. Bernard implemented the lean management that he learnt in six sigma training to solve the problem. It shows that employee’s capability is important to increase the performance of the organization. Last but not least, keep on improving systematically. Rapid technology change becomes the biggest threat to the global business. Therefore, the action to improve the process systematically must be taken. Reviewing the process can be done in monthly, quarterly and annually. But it depends on the value of the process to the company. Once the value is determined, its evaluations can be scheduled accordingly. As in the case study, the team implemented the process improvement because they realised the significance of standardisation. The top management also decided to execute lean management into the plant’s daily production routine which helps in advancing the working culture at the plant.