I think this presentation indicates how useful visualisation are in dealing with complexity.
It mentions that it is important to set back and embrace complexity, and then look at issues in context.
It also demonstrates how dynamic visualisations can be powerful in analysis where one can selectively hide, decompose etc. the views. And to my mind why static crafted hardcopy reports will often struggle to allow us to examine new issues that arise, and what-if analysis i.e. it is the ability to interactively explore the data from many perspectives that is critical to the insights.
It is only by understanding how to deal with complexity effectively and good using solutions and tools to deal with it are we going to get any better at making strategic transformation or optimisations of the increasingly complex systems that are large enterprises.