George is the chief executive officer of Amalgamated Metals. His responsibilities include decisions on product development, marketing, and other significant business directions. George is subject to the oversight of Amalgamateds board of directors. Jean is an Amalgamated manager whose duties include the firm's day-to-day hiring, firing, purchasing, and selling. Andrew is an Amalgamated salesperson, whose daily activities are controlled by Jean. Edith writes technical manuals for Amalgamated products according to George's instructions and has no dealings with Amalgamated customers or suppliers. Jonathan edits the manuals on a contract-per-manual basis and is not otherwise subject to Amalgamateds control. Who is a principal? Who is an agent? Who is an employee? Who is an independent contractor?