Yes. I've heard from a few sources connected with the Tesla that Musk felt that engineers (both design and process) from existing US auto companies were "yeste

Yes. I've heard from a few sources connected with the Tesla that Musk felt that engineers (both design and process) from existing US auto companies were "yesterdays news" who were not up to Tesla's standards. Turned out that there are huge number of issues when manufacturing an automobile. And that the knowledge to prevent or resolve a lot of those issues exist only in the heads of people who have gone through it before. The build quality of early Tesla's was... not great. And while my understanding is that it has improved quite a bit in recent years. That said, most people in the industry seem to feel that Tesla still has a ways to go before they are "world class" in build quality.