Authors need to explicate which concepts and causal arguments are adopted from cited sources and how they are linked to the theory being developed or tested. This suggestion does not mean that a paper needs to review every nuance of every theory cited. Rather, it means that enough of the pertinent logic from past theoretical work should be included so that the reader can grasp the author's logical arguments. For example, Weick (1993: 644) acknowledged his conceptual debt to Perrow's work and presented the aspects he needed to maintain logical flow in this sentence from his article on the collapse of sensemaking: "because there is so little communication within the crew and because it operates largely through obtrusive controls like rules and supervision (Perrow, 1986). it acts more like a large formal group with mediated communication than a small informal group with direct communication." Note how there is no need for the reader to know about or read Perrow's work in order to follow the logic in this sentence.