Many people go into open source software without careful consideration of what that means. This presentations tells it like it is from the point of view of a developer. Great visuals.
Popular CMS software like Wordpress and Drupal opens the way to a new figure of "advanced admin", who can wield a lot of control on her website while not doing any actual coding. This enables public sector officials to become very good at having constructive conversation wt their developers, and consequently at procuring websites.