As it originally emerged, neoinstitutional theory was a fragmented array of positions with some common ground but much that was not as well (Scott 1987). The early work quickly divided into a more macro set of approaches (Meyer and Rowan 1977), and a micro set of approaches to institutions and to the process of institutionalization (Zucker 1977, 1983), and an approach that straddled the two (DiMaggio and Powell 1983) (see Zucker and Darby 2005, 548). The most fully developed of these positions, and also the one with the most significant contributions to practice, was that of John Meyer and Brian Rowan (1977; see also Meyer and Scott 1983).