Likewise with chip software tooling; despite it being standard to outsource tooling to large EDA vendors, we got a lot of mileage out using our own custom tools, generally created or maintained by one person, e.g., while I was there, most simulator cycles were run on a custom simulator that was maintained by one person, which saved millions a year in simulator costs (standard pricing for a simulator at the time was a few thousand dollars per license per year and we had a farm of about a thousand simulation machines). You might think that, if a single person can create or maintain a tool that's worth millions of dollars a year to the company, our competitors would do the same thing, just like you might think that if you can ship faster and at a lower cost by hiring a person who knows how to crack a wafer open, our competitors would do that, but they mostly didn't.