“Forecasting is hard, and even those who sometimes get it right, often fail on a continuous basis. But fear not, there are three steps you can take to drastically improve your forecast accuracy, but you’ll have to be willing to put in the work, and possibly put your ego aside to get there.
1) First, understand that domain knowledge of a particular area doesn’t necessarily mean you’ll see the future better than anyone else.
2) Second, if you want better forecasts, run your expert opinions by others.
3) Third, bring your data – in fact, bring all of them.” Paul Barsch ( October 13, 2014 )