• We can apply metrics to different domains. Muller's critiques focus mainly on not-for-profits, where Doerr directs his attention to big business (such as tech).
• Metrics inspire effort but also encourage corruption. Therefore, each metric should be considered in light of trade-offs.
• Using metrics and goals can increase the effectiveness of a healthy company, but the same strategy can damage people in an unhealthy organisation.

Organisations often waste time by pursuing conflicting goals. OKRs helps to focus united efforts as it is easy to evaluate progress when goals are tied to measurable results.

However, it can be a problem when goal-setting becomes an obsession. Common pitfalls to avoid: