Billion Dollar Campaign - Most of us that have read Malcolm Gladwell's book, "Outliers" filed away this little factoid-- it requires ten thousand hours of deliberate action to get successful. Specifically, he wrote "an extraordinarily consistent answer inside an incredible quantity of fields... you need to have practiced, to possess apprenticed, for ten thousand hours prior to getting good."

I reached the 10,000 number many years ago and also have a fairly well cultivated capability to assess talent in many fields.