Agile is not a new process that just retains existing domains and structure, overlaying them with new process regimes or standards. Agile is an entirely new way to operate. Roles will change. Roles will disappear. Team structure, hierarchies, and reporting lines rebuilt from the ground up.

The Cambrian Explosion happened 540million years ago and was a sudden proliferation in new life forms. All the main forms of life we have now came into being. Those forms that evolved and exploited the opportunities thrived. Those that did not, remaining much as they did in the Ediacaran Period, died out.