If you find the illustration hard to 'digest' don't feel alone. Traditionally organizational charts are presented one 'layer' or 'leg' at a time, as it is near impossible to view the organization as a whole.
There is a rule, that leads to these large ungainly structures, one that is pretty typical from one organization to the next. Basically it goes something like this..... No management position will be created with less then two direct reports, or, stated another way, there will be no 'one to one' reporting relationships in management. It is easy to see how the organization ‘grows’.... and with it, the chain of command that is intended to maintain control.
One of the difficulties noted in recent science suggests our tendency to control and stabilize actually inhibits the organization’s ability to change. Not much of a surprise there as that has been our intended consequence. Stablize the organization. However an organization that doesn’t change, in an environment that continues to change, (and more rapidly every minute) ultimately fails to adapt and survive.
Another interesting irony is the sense of 'no control'. The organization is put into place to control the 'hordes' of direct labor employees. Though as you can see, from the top down perspective, this just doesn't work. The irony is complete when one takes the 'Bottom Up' perspective.