Grove defines leverage as the amount of output produced by a particular work activity. The concept shifts attention away from how much time or effort an activity requires and towards the effect it has on wider results. High-leverage work produces substantial benefits relative to the resources invested, while low-leverage work contributes comparatively little.

In management, this provides a way to decide where limited time and attention should be directed. Activities such as improving a process, training employees or making a decision that affects many people may have greater leverage than tasks whose impact remains narrow. Grove’s point is not that low-leverage activities are always unnecessary, but that managers should understand their relative contribution. By identifying work that influences broader organisational output, they can prioritise activities that make more effective use of their time and have a greater effect on overall performance.