Business Acumen

What is Business Acumen? Business Acumen is vague unless it is demonstrate in results. So how can you say one has business acumen. The person who has successful business or run a business successful. I had coffee with a colleague today. Kate is an American girl. She has lots of commonsense. It is easy to see in a big company it is just a job for most. Therefore it gets frustrating to see the company is beating down the path. When the basic is not there, it will be not successful. What is basic? Instead of talking, do the right thing for the Customer.