'He is responsible for timely and accurate completion of job'.

Identify the specialist as per one of Taylor's Technique of Scientific Management, stated above.

Speed Boss

The correct answer is option (4) : Speed Boss.

The speed boss is responsible for overseeing and optimizing the speed and efficiency of the production process. They monitor the workflow, identify bottlenecks, and implement strategies to enhance productivity. The speed boss may work closely with the planning incharge to align production speed with the overall production plan.