[bialpio]

I think the main difference is that programmers have (or should have) more transparent processes that they go through (code reviews, design doc reviews / signoffs, CI/CD to catch mistakes) compared to managers. Granted, I'm an IC so I know more about those - maybe managerial roles have similar ways to ensure you catch the "bad" early enough.

[steveBK123]

I think its genuinely harder to measure the squishy productivity / collaboration / delivery output stuff that managers are supposed to own, but also .. managers aren't as incentivized to create processes to measure managers ..