Why must successful managers recognize opportunities and threats in their company external environment?

Successful managers must be able to recognize oppourtunities and threats in their company external environment because if they miscalculate or underestimate the market and its conditions, a lot of opportunities would be lost.

Explanation:

A good manager should be able to dicipher opprtunity from threats so as to avoid lossing the former due to high competitive market. If not, customers would go for an alternative services or products.