I think GPs point is that evaluate(sum(impact of ICs) can be evaluated by the manager of the person-to-be-promoted. My concern with this is: How do you correct

I think GPs point is that evaluate(sum(impact of ICs) can be evaluated by the manager of the person-to-be-promoted. My concern with this is: How do you correct for luck/easy tasks? It’s hard to compare the performance of departments unless you have been inside and seen the challenges they’ve been facing.