Ford publicly admitted that its AI-driven quality control strategy failed and the company had to rehire 350 veteran engineers to fix intractable manufacturing problems that had cost billions in recalls. The automaker's VP of hardware engineering acknowledged the miscalculation directly — they believed automating design and quality would work, but it didn't. This matters because it demonstrates that even cutting-edge companies can't simply replace domain expertise with AI; the 'greybeards' their own engineers had replaced turned out to be irreplaceable.