In my experience,
ExXB, that is exactly what happens when you take a business and chop it up into little pieces. If you separate and outsource and split to save money, there are gaps that occur where there used to be joins.
On legal paper - it all looks fine - and can be proved to be fine. But it isn't because humans are involved.
I won't start my usual rant about this commercial process that I first saw in the USA in 1988 and has spread as a contagion through government as well.
