The primary shortcoming of the Dustin program is while it helps people learn scripted tasks, memorization of one's lines is not the usual focus in a learning by doing situation. More common is the need to figure out what to do in a novel situation. Though learning by doing sometimes means learning what everyone else already knew, more often it means learning from your own idiosyncratic experiences.
It is in the mid-ground between completely scripted tasks and completely idiosyncratic ones where the potential for Learning by Doing simulations is the greatest.
For example, everyone expects brand new employees to make certain "rookie" mistakes at the onset of a new job. By using Learning by Doing simulations, employers can bring new employees up to speed in a safe training environment, giving them a chance to experience (and learn how to avoid) the common everyday failures that their jobs entail.
Take me to the outline for the book