Part 1 Create Section 3 of your Supply Chain Process Improvement Proposal: Organizations and Functions . Describe and discuss the various organizations and functions within the supply chain. Part 2 Create Section 4 of your Supply Chain Process Improvement Proposal: Third-Party Logistics (3PL) . Explain how 3PL services are used in your company and how these could be or are used to improve the supply chain for your chosen company. ...