Most organizations struggle with planning because they rely on a "PUSH" system, which is akin to the myth of Sisyphus. In this scenario, teams attempt to forecast capacity and effort using complex spreadsheets and calculations, only to find that their estimates are often inaccurate. The analogy highlights the futility of pushing a heavy boulder uphill, only for it to roll back down. Despite the effort, many companies find themselves stuck in a cycle of disappointment, unable to meet their goals. The key problem with the PUSH approach is that it assumes predictability in complex work. Forecasting capacity and estimating effort accurately is nearly impossible due to the unpredictable nature of tasks. As a result, teams end up overestimating their capabilities, leading to frustration and wasted resources. The article advocates for a shift toward a "PULL" system, where planning is based on real-world capacity and the actual effort required for work. This method allows teams to adapt and respond to the reality of the tasks at hand, instead of relying on flawed forecasts. By pulling work based on available capacity, teams can manage their projects more effectively. This approach encourages gradual progress, where smaller tasks are added as capacity allows, rather than trying to push large projects through a rigid framework. The article emphasizes that trusting unreliable estimates only exacerbates the challenges faced in planning. Instead of forcing plans that often fall short, adopting a PULL mindset can help teams navigate the complexities of their work more successfully.