I hope this isn't hijacking the thread, but I was just playing with the org charts and had an idea. Would it be possible to add an option to turn it into a quasi-org chart, sorted by rank. I'm thinking of something very similar, without the connectors, that just has everyone of a given rank on a separate level of the chart.
My team doesn't use a supervisor/subordinate model, but it would be nice to have a place to glance and see who you can put in charge of whom for a given operation. It could be as simple as adding a parameter like &ranksort=1 or something.