We can identify our challenges "by visualizing our workflow to identify what blocks it." Visualizing the workflow, such as through a Kanban board or value stream map, helps teams see where bottlenecks, delays, or inefficiencies occur. This visualization makes it easier to pinpoint problems and areas for improvement.
While holding retrospectives (B), finding where frustrations arise (C), and trying good practices to identify failures (D) are all valuable techniques, visualizing workflow is a foundational Lean practice for identifying and addressing challenges in real time.