I see one obstacle by this transparency approach: How to create a fair measure for "impact"? I would say that it is very hard to measure the actual impact of a

I see one obstacle by this transparency approach: How to create a fair measure for "impact"? I would say that it is very hard to measure the actual impact of a senior developer. He gives advice here and there, he influences decisions in a good way, he asks the right questions, he recognizes risks early and so on. All that can hardly be measured.