Coca Cola is getting their money’s worth by issuing B-Mobiles to their AD (Account Developer). An AD is a person who works for the Coca Cola Company and their work includes visiting each store in his designated area. And in order for the company to be able to check if they are really working, a B-Mobile was issued. It is like a handheld gps but the only thing that can be found in the B-Mobile are locations of different stores under the AD’s area.
I think this is a better idea than kept on checking your employees if they are really working when on field.