Comment by ang_cire
Sure, I don't mean to imply that there aren't additional skills required to manage something, but you still have to fundamentally understand the thing that you are managing.
The idea that management can be subordinate/project/industry-agnostic is the mistake.
You can't (based purely on work experience, not talking about individual abilities) go from managing a coffee shop to running IBM... OR VICE VERSA
If this assertion is rankling anyone, I invite them to look up how many private investment firms are failing spectacularly to manage small businesses they acquire (e.g. dentists and vets) and running them into the ground, by trying to make them operate like SaaS companies.
So true. A friend of mine worked as a manager at an ECO diary producer (milk, cheese yoghurt). An investment firm bought the owners who build the company from nothing for a substantial sum. They then brought in a new young executive team who mainly had experience and making online clothes and food retail startups. Initially the owners had a requirement to consult to the business for some amount of time. That was quickly dropped as they didn't want the old owners to "interfere" (essentially telling the exec that they what they wanted to do didn't work). After less than a year my friend and the product manager where the only managers left from before and they had become the "nay sayers" (I.e. telling the boars their ideas and execution don't work in this industry) and where eventually let go. By this time they had lost major costumers, majorly invested into equipment that still didn't work (as the product manager predicted from the get go) and the company was probably worth less than half. I just read the news that 7 years later they sold at 2% of the purchase price. Cases like this should really be mandatory study.