I don't know if this is concider a spoiler or help. As anybody notice the real use for the chief? If you place the chief at any of the working spots, he will automatically direct work. While he does that the villagers if untrain will learn faster and the work will be done faster which mean they get less distracted. Also in the lab the tech points will raise faster. So dear friends start making use of your chiefs they have a lot of use if pay close attention. Also they will direct the job for a long time if there is no sick villager or anything on the way and then he will get back to directing.