Rob Healy and his co-researchers present a novel technique to assess the stability of Agile systems using queueing theory. They define a "Stability Metric" to measure how stable the queues in an Agile system are. Applying this metric to a dataset of Jira projects, they found that project backlog size correlates negatively with stability. The stability metric has potential applications in predicting flow, diagnosing over- or under-loading of teams, and measuring the impact of process improvements. The researchers' next steps are to explore how stability changes over time and relate it to the concept of "flow."