Much empirical work on marketing organization has not distinguished between marketing units and sales units. Traditionally, sales has been conceptualized as a subunit of the marketing department that reports to a marketing executive (Ruekert, Walker, and Roering 1985; Weitz and Anderson 1981). For example, Ruekert and Walker (1987a, b) and Dastmalchian and Boag (1990) speak about marketing as one whole and barely mention the word sales. This view of M & S as one unit is challenged by qualitative reports (Piercy 1986).
p. 134 - "Configurations of marketing and sales: a taxonomy", 2008