Or for a simpler experiment with orgchart.graffle in the sample documents, look at the center of the lower edge, where Mark Yu has only one person reporting to him.

1. Open the outline sidebar, and use it to expand Mark Yu's team by one, so that two people now report to him, and apply Automatic Layout. The data is still symmetrical, but the diagram immediately becomes asymmetrical, and the jagged dog-leg links appear to left and right.
2. Give Mark Yu a third team member, and apply Automatic Layout again, and the asymmetry becomes even more pronounced and strange.
3. If his team grows to have five people reporting to him, Automatic Layout will again mess up the lower left corner of the diagram, and it will become unclear whether people are reporting to Mark Yu or to Jeff Monrow, the Office Manager ...