[BarryMilo]

A valid point, I think the sentiment is more common in the development world because things change so fast you can't really master the entirety of even a very specific domain for very long.

However, it seems IT over time has grown to be (or aim to be) "incompetence proof". That is, even if you mess up, there should be mechanisms in place to prevent a catastrophe, so that at least two people must be majorly incompetent to create a disaster. I guess we call it redundancy.

Compare with medecine, if your doctor is bad you can die. And people frequently do. I tend to prefer our base assumption that everyone is incompetent, that way we're prepared when someone makes a mistake.