The concept of supply chain integration and end-to-end communication are well established in supply chain theory. Typically, because of the depth of publications, an axiom has developed that all supply networks are fully integrated and have end-to-end communication protocols. Recent research into Australian supply networks has highlighted a somewhat different scenario, where many networks are fragmented and lack the connectivity that would be expected. This paper offers a comparison of theoretical supply chain management and the actual practices found in Australian businesses. As a result of this grass root research, a scenario is offered that suggest there is a significant gap between the theory and practice of supply integration and communication that in turn, generate risk in these supply networks.