There is a difference between merely "having a goal" and becoming committed to a huge, daunting challenge... Although organizations may have many BHAGs at different levels operating all at the same time, Shared Vision requires a special type of BHAG - a "vision level" BHAG that applies to the entire organization and requires 10 to 30 years of effort to complete. Setting the BHAG 10 to 30 years into the future requires thinking beyond the current capabilities of the organization and current environmental trends, forces, and conditions... A BHAG should not be a sure bet - perhaps only 50 pecent to 70 percent probability of success - but the organization must believe "we can do it anyway." It should require extraordinary effort, and perhaps a little Luck.
like a Moon Mission?