The social embeddedness of networks is perceived as a major reason for their uncontested responsiveness and ability to generate incremental innovations (…). Too little embeddedness may expose networks [milieux] to an erosion of their supportive tissue of social practices and institutions. Too much embeddedness, however, may promote a petrification of this supportive tissue and, hence, may pervert networks [milieux] into cohesive coalition against more radical innovation. (Grabher, 1993: 25-26)