Based on your experience or readings, discuss how these mega trends affect the Purchasing and Supply Management professional in the exercise of his$/$her duties and responsibilities $$ in particular Supply Chain Management and Supplier Outsourcing in the public and private sectors$.$ What are the salient factors that have contributed to the evolution of the Purchasing and Supply Management profession? Are the use of supply chain management principles$/$practices and the establishment of strategic alliance agreements with select suppliers more conducive to private sector organizations? What are your perspectives? NOTE: Your response should include comments and$/$or observations relative to each of the items associated with this week's discussion topic.