Our last manager's claim to fame was a six sigma black belt with no knowledge of what our design group did. It takes around 3-5 years doing the work just to become proficient and develop the judgment, know the product history required to avoid and fix problems.
He would often try to tell us what to do that made no sense based on no knowledge or simplistic view of the product. and showed little interest about what the group did except for going to meetings and presenting charts and graphs that made him look good. Most of it was pathetic BS to anyone who knew what they were doing. We were told we weren't allowed to use our experience, like avoiding problems we knew about in detail from the 1950's and 1970's that were coming back into the product line because of lack of knowledge. everything had to be six sigma, not experience even though these issues were well known historical engineering facts and results of engineering studies decades ago. Now we see many issues we knew about being redesigned into the turbines and becoming fleet issues again. Its so pathetic and frustrating
The older experts left and retired early and then he was promoted after staying just 18 months.
This is what GE is today instead of having real technical leaders