Most people don't like the television weather anchor that doesn't forecast accurate weather. If they don't rectify it quickly before it becomes viewed as a pattern, the weather anchor can quickly lose the trust of the public. It's the same way in sales. Make sure you accurately forecast sales. Being able to accurately forecast builds trust and faith in an individual and belief that they know what they are doing. If you are not good at this you need to work to get better. Ask multiple questions to get a better understanding so you can become accurate in forecasting. After all, it's the right thing to do and it models the way for others.