[whpalmer4]

You could check both lists. You could make perspectives that show you both lists. Or, you could combine the two lists, and put start dates (and possibly due dates) on the waiting items. If you are waiting for Fred to give you a report, put "Receive XYZ report from Fred" on your People:Fred list, with a due date showing the date that you need the report, and a start date reflecting when you might reasonably first get the report. If it is a sequential project, the incomplete action will prevent OmniFocus from offering you anything past the awaited item as an available action.