In the beginning, there were no colored belts and we focused only on the end customer, reducing warranty costs and getting it right the first time. It was named six sigma and it was good.
Over time, we added black belts and increased the use of advanced statistical tools. This called the six sigma way and it was better.
Soon we saw the need for more definition and including others to help the black belts in their quality quest so we added green belts. This made the black belts happy.
Eventually, the black belts grew numerous by order of the King. These black belts expanded their search for variation reduction to all corners of the kingdom including even processes in the Human Resources Department but still lacked direction. So we added Master Black Belts to lead them.
As we look across the kingdom today, we can now see yellow belts, gold belts, white belts, master black belts and even Grand Master Black Belts added to the royal order of belts. Everyone must have a colored belt to save the kingdom money regardless if it actually helps the end customer. And the only way to fix a problem is through a black belt project, green belt project or even a lime green project (in between a green belt level project and a yellow belt level project). I guess calling it a lime green project is better then calling it a pea green project.
But is this good? Maybe we should go back to the basics and focus on the customer, reduce warranty cost and getting it right the first time.