Actually I would not say it is about resources and tasks, it is about process. Process is what is interesting. Companies have plenty of resources in their warehouses, and workers know how to do tasks, but unless an order comes from the customer, the shipping process never starts.
A large part of UI problems arise when people focus on the tasks instead of the process. Simplistically, if you want to provide ETDBW, you must re-engineer the process, not the resources and the tasks.