Knowledge is the Treasure, but Judgment is the Treasurer of a Wise Man. He that has more knowledge than Judgment, is made for another Man's use more than his own.
My father used to tell me that brains are like muscles: they can be hired by the hour. It is character and judgment that are not for sale.
So what makes good forecast judgment? It could be quantitative or discretionary, but it is founded on the interpretation of facts not the gathering of facts. For interpretation, there is a need for a philosophy or view on how the world works. Many can have facts but the assessment of these facts is the value-added skill.