I think you are missing the point why enterprises have multiple tiers down the line of contractors who implement their software. The point that's most importan

I think you are missing the point why enterprises have multiple tiers down the line of contractors who implement their software. The point that's most important is: plausible deniability, because with formal and contractual agreements comes the responsibility shift. Enterprise buys software consultancy services because they are the ones that get the blame if it's not compliant with the legal requirements for it or when an audit fails at a later point.