While there are obvious flaws with metrics as Rachel mentioned, there are equally bad flaws with leaving things to manager. Lot/most of middle managers are dysf

While there are obvious flaws with metrics as Rachel mentioned, there are equally bad flaws with leaving things to manager. Lot/most of middle managers are dysfunctional and don't at all work or care to provide the best review possible from their side. Should the team suffer because of this? Aside, I think consistency is at least somewhat a good metric unless totally gamed. Not the number of PR merged or anything, but metric for coding activity time each day with a very low ceiling for completion, say 1 hours a day.