Analyst Insight: Sherman's Law of Forecast Accuracy states that forecast accuracy improves in direct correlation to its distance from usefulness. It's time to stop being driven crazy by demand variability. Don't be driven by demand; sense, shape and respond to demand. Your company can better predict and respond to demand variability through integrating forecasting techniques with demand planning techniques; in a word, collaboration! - Rich Sherman, Principal Essentialist, Trissential