What happens after you draw it
Every wait time on that whiteboard is a leadership decision that can be unmade. The approval gates. The shared staging. The sequential security review. The change advisory board.
You will know exactly which ones to eliminate. Not because a consultant told you. Because you drew the picture yourself with the people who live inside the process every day.
Organizations that do this regularly report cycle time reduction from 28 days to 12 within 90 days. Not by hiring engineers. Not by buying more tools. By eliminating the decisions that created the wait.
The constraint
Fix the constraint. Not the symptoms. The map will show you what the constraint is. The rest is leadership decisions, not engineering decisions.