My main observation from managing a small group was that you could easily correlate the developer's skill to the feedback they gave in code review. The ones tha

My main observation from managing a small group was that you could easily correlate the developer's skill to the feedback they gave in code review. The ones that illuminated possible bugs or ambiguities clearly stood apart from those that merely pointed out formatting inconsistencies. And by far the worst devs in the group were the guys who said "looks good". I love the group therapy metaphor. Good regular communication about what we do, properly curated, really improves self-confidence.