Re: Breaking up silos
Agree with your assessment.
If having separate functional teams or departments helps provide security, then good.
The problem arises if there is no effective communication between different teams. When I started in my Australian public service role there were certainly "silos", but, when I needed something done by another office/department, I knew who to talk to.
It seems, after successive waves of MHT/JWH (or Reagan? if you are American) inspired "efficiencies", a lot of the knowledge of how things work has been lost. Even, just before my retirement, our IT department totally failed to identify the team I was working with as a stakeholder in a major system upgrade, leaving me to pick up the pieces and provide a "temporary" fix