Answer: Optimizer
Explanation: Optimizer is described as the person who is responsible for improving the efficiency of the organization and also focusing on increasing the profit. Optimizer focuses on gaining benefit from the work by opting the best efficient solution for every situation
According to the question, Mr. Shaw is also an optimizer in respect to his purchasing profile. He wants to select the finest supplier carefully from all the known as well as new suppliers .He is focused to buy efficient corporate gift from the best supplier .