Metrics should not be used to judge individual performance but should focus on team-level outcomes.The misuse of system-level metrics for personal evaluations can lead to gaming and hinder genuine improvement.Different team structures like Engineering Manager model and autonomous teams with team topologies impact performance evaluation.Leaders adopting new metrics need guidance on using them responsibly to avoid negative impacts on teams and systems.Setting targets on outputs can lead to gaming or frustration; input metrics drive real system-level change.Metrics should provide context, focus on what teams can influence, and avoid becoming targets themselves.Improvement requires identifying bottlenecks and connecting team actions with business outcomes.Teams should focus on a few meaningful metrics, experiment with cadence for feedback, and prioritize improvement over gamification.Using flow metrics to evaluate individual performance can hinder learning and improvement.Gamifying metrics may show short-term improvement but does not contribute to long-term success and system improvement.