At the beginning of my career I worked in AEC on the planning side. It was well understood that whatever the Architects had designed would be entirely redone by

At the beginning of my career I worked in AEC on the planning side. It was well understood that whatever the Architects had designed would be entirely redone by engineers afterwards and then by on-site engineers and then by tradespeople after that in the implementation. No one really understands what's going on in a reasonably-sized building.