The core of every successful enterprise is closely understand customers' needs and how to anticipate and meet them. For many years, the people understand this unconsciously, how long 'the teardrop banner to promote' invention; every great genius of the entrepreneur.
When the production is not a lot of alternatives, the relatively small selection, customers to provide them with a sales personnel. But these days passed. During the transition period, it is considered to tears banner Promotion Department, in order to make customers aware of the benefits, and then part of the sales persuasion and sales tasks.
Now, customers select the surprising number of general services and select the product itself and the task is to convince them to what they really want to buy from you directly or from other indirect - and again on your brand.