For decades, the Critical Path Method (CPM) has served as the backbone of construction scheduling. It's detailed, deterministic, and provides the long-range visibility executives need to forecast outcomes, manage risk, and protect margins. But in recent years, there's been a growing chorus arguing that CPM is outdated—too rigid for today's complex, fast-moving projects. Instead, some advocate going all-in on Lean principles like Last Planner® or Takt Planning as the sole planning system on a job.
