Your article took me back in time several years to two separate organizations I worked for, ten years apart from each other. However, both paid consultants to come in and teach a multi-day problem solving class. I learned a lot, so am not complaining -- but I don't think any of the methodologies were ever put into practice. This is the gold standard in getting to productivity. *Don’t rely on experts: don’t ask them to solve the problem for you; get their help understanding the process

One of the best sources of getting to the root cause of issues is asking those closest to the source. They might not have the solution, but they have a unique view of the problem and its symptoms.

Your article covers more of this topic than my perspective, but because I have always enjoyed the problem solving, analysis, and root cause identification, I wanted to comment and affirm your expertise.