This is too true. Academics face a very confusing career transition.
Of course, it also varies. The post-doc chart is a fairly accurate illustration of my life before getting a position, but the assistant prof chart will depend on what kind of position you land — mine would be much, much heavier on various duties associated with teaching.
The screwy thing is that there is no teaching at all as a post-doc, so the thing we spend most of our time doing now is the one thing we got no training in.