Thanks for all the responses, makes a lot of sense. It seems like the answer is “Yes, from Toyota’s perspective” in that Toyota gets to focus solely on the manu

Thanks for all the responses, makes a lot of sense. It seems like the answer is “Yes, from Toyota’s perspective” in that Toyota gets to focus solely on the manufacturing process, and let the others figure out the chaotic bits to get the required parts in the right place at the right time, because that’s a different skill set that certain other corporations are far more adept or have specific resources like rolling stock. To use an analogy: a surgeon operating on a patient, holds a hand out and says “scalpel” and a scalpel instantly placed in hand. Does it matter that their are trays and trays of parts and other people in the room if we are just evaluating the surgeon’s efficiency?