Their queue is populated from a master list used for each orphan. That list is based on the rank of the player (in the opinion of the list ranker) not 2010 playing time. A human will check the queue before each pick to make sure that the orphan does not go off the deep end (say by thinking Adam Wainwright is still healthy). The orphan's goal is to make each team tasty enough to be picked up by a real owner.