external environments of firms

In Competing for the Future, Gary Hamel and C.K. Prahalad suggest that “every manager carries around in his or her head a set of biases, assumptions, and presuppositions about the structure of the relevant industry, about how one makes money in the industry, about who the competition is and isn’t, about who the customers are and aren’t, and so on.

Write a 1 page paper Explaining why this can be troublesome, and how managers can work around it.