According to the passage one of the aims of internal marketing is to

In the past decade the term "internal marketing"
has emerged in many companies to describe the
application of marketing internally within the firm.
This seems to be an area where practice appears
ahead of theory. Despite the existence of many
internal marketing programs no books, at least in
English, have been published on internal marketing
and only a handful of articles have addressed this
important and emerging area. There are two key
aspects to this. One involves the notion of the
internal customer. That is, every person working
within an organization is both a supplier and a
customer. Here we are concerned with getting staff
to recognize that both individuals and departments
have customers and then determining what can be
done to improve levels of customer service and
quality levels within the organization. The second
aspect is concerned with making certain that all
staff work together in a manner that is attuned to
the company's mission, strategy and goals.