From my perpective the drawing is very important because the systems that will work are those that most closely mimic the topologies and mechanisms of the predominant underlying communication technologies.

I can assess a systems chances of performing well simply by look at the architecture. And architecture and drawing are always related. Organisational structures are also architectural in nature.

So I do expect to see routing mechanisms and redundant paths in moder org. structures. A few years ago these structures weren't as feasible because the communication/collaboration tools were not there to support.

Jon's explanation of the image as a snapshot in time made the lack of redundant paths understandable.

There are multiple layers in a network/organisation. The more layers you get to mimic the predominant communication technololgy the better the system will respond to change. Technically it is a case of systems impedance matching.

So to come back to the original post.. questions such as : Do we still need org charts?.. can be answered by an analysis of underlying communication networks.

When in Rome do like the Romans.. when on the Internet do like the Internet.. become a packet .. and Disperse..lol