To provide an overview, Degan (2013) presents SCM challenges commonly encountered in today's industry. First, practitioners apply incorrect metric models, failing to manage supply chains at sustainable levels. Second. SCM improvement efforts are not properly prioritized and fail to allocate resources to areas that create added value. Third, company performance in some activities lags behind other key factors. Fourth, businesses today face limited growth in domestic markets, forcing them to expand into emerging markets. Such expansion exponentially increases the complexity of its supply chains, to the point where it becomes difficult to identify problem areas. Finally, discovering and retaining SCM talent has become more difficult because this operations management concept is so broad in its scope of activities covered. Such challenges demonstrate how SCM has evolved from a simple, manageable supply chain process to a complex, multi-tiered operations management process encompassing domestic and international operations.