Well, I disagree that this is equivalent to your description of the article's answer. But I take your point. I'm not sure there's a universal, objective way to

Well, I disagree that this is equivalent to your description of the article's answer. But I take your point. I'm not sure there's a universal, objective way to evaluate what "doing a good job" means for any job that isn't ruled almost strictly by some quantitative measure (e.g. "output is X widgets a day"). None of the items on this list have absolute measures ("plays devil's advocate at least once a month"), or even well-defined relative measures ("makes 10% fewer mistakes after being corrected") for exactly that reason. They're heuristics, and I'm skeptical applying anything more rigorous is reasonable to attempt.