Allan points out that Warren Buffet and Benjamin Graham invested in Circles of Competence. The idea is to buy what you know.

Too often, organizations confuse this with circles of convenience. They stick to the tactics, products, people and channels that they are comfortable with, instead of rethinking what the market demands.

When Amazon offered the New York Times millions of dollars in affiliate revenue a decade ago, the paper turned them down because they feared losing Barnes and Noble as an ad