I think this is a pretty fair take in theory. In practice, I feel that I work with a lot of people that excel in one very specific domain of knowledge and lack

I think this is a pretty fair take in theory. In practice, I feel that I work with a lot of people that excel in one very specific domain of knowledge and lack anything else, probably because they use this exact mindset. And when they uncover a situation they have no awareness of, they rely on me to fix it, or spend 3 additional days studying the problem while it is a problem. And the thing about problems is, they're kind of nice to be able to solve quickly. Though it would be fair to retort that I'm probably a jack of all (or many) trades, but a master of none, which sometimes hurts my ability to get work done. Though, in my honest opinion, I feel I come out on top in most situations. Anyway, this is a pick your poison scenario, probably. So, don't let me try to tell you one way is the best way.