That's sort of how it works in the automotive industry: one company makes the parts, one company assembles the car, one company sells the car and anyone can pro

That's sort of how it works in the automotive industry: one company makes the parts, one company assembles the car, one company sells the car and anyone can provide service. The only downside is that there's a lot of overhead (imagine if a software project you worked on needed this amount of formality every time you talked to a UI designer or database engineer).