[Ensorceled]

I've been managing teams for more than 20 years. Performance evaluation is easy, somebody is either performing well or they are not and a good manager can tell. One of the reason I like Agile is that if it's done right, the whole team can tell who isn't performing.

Performance analysis is incredibly complex and nuanced. Judging if somebody is performing poorly because they are unskilled or not managed properly or having marital problems is hard. Improving performance is even more difficult because it requires the analysis and a remediation plan.