Differentiation. Positioning. Value proposition. Competitive advantage. Sensitivity and flexibility.    CUSTOMER ELIMINATION PHILOSOPHY. On more than one occasion, I have noted that nothing is more important when developing a marketing strategy than a customer focus. The customer lies at the heart of every genuinely cost-effective marketing strategy. Consistent with this view, my philosophy on eliminating the competition might be summarised as follows: The closer any organisation gets to exceeding the expectations of a well-defined target market, the closer that organisation will be to optimising performance. The elimination of the competition, or at least the minimisation of direct competition, is central to developing a cost-effective marketing strategy. Eliminating the competition is best served by exceeding the target market’s expectations in ways that set the organisation apart from its competition.    ELIMINATION DEFINED This could be a relatively short missive. I could just outline the lethal weapons you should use and how…