PM Post: A Relay Race, not a Train Schedule
Most projects are managed by carefully watching the calendar, comparing where we are today against some baseline schedule. That schedule typically consists of a series of start and due dates for consecutive tasks, with due dates of predecessors matching start dates of successors. Like a train schedule, if a task arrives at its completion on or before its due date, that portion of the project is considered to be “on track.” Successor resources plan other work and their availability around those dates. If the predecessor is finished early, the successor resource may not be available to pick up the handoff. Even if the resource is available, there is commonly little or no urgency for the successor to start (or to focus on it exclusively), since we’re “ahead of schedule,” and that resource will typically tend to other priorities.
The problem with this common practice is that while it is important for trains to arrive at and depart from their stations (their milestones) at appointed times, project value is more often tied to the absolute speed from beginning to end. The sooner the entire project is completed; the sooner project benefits can be accrued. A more appropriate metaphor to guide projects is a relay race, in which resources are encouraged to pick up the input handoff as soon as it is available, “run with it” in a full, focused, sustainable level of effort, and hand off the output as soon as it is complete.