Would a directed graph metaphor add to this? If task circles could be linked in order of precedence, and project circles linked to show resource collaboration,

Would a directed graph metaphor add to this? If task circles could be linked in order of precedence, and project circles linked to show resource collaboration, the resulting diagram layout could be visually useful. http://upload.wikimedia.org/wikipedia/commons/thumb/3/39/Directed_acyclic_graph_3.svg/356px-Directed_acyclic_graph_3.svg.png http://upload.wikimedia.org/wikipedia/commons/thumb/3/39/Dir...