A Kanban team's cumulative flow diagram shows the 'In Progress' band widening steadily over several weeks while the 'Done' band grows only slowly. What is the most likely interpretation, and what value-focused action follows?

Choose one answer

• AThroughput is excellent; the team should start more work
• BWork in progress is accumulating faster than it completes, signaling a bottleneck; the team should limit WIP and address the constraint
• CThe backlog is empty; the team should add scope
• DLead time is decreasing; no action is needed