Phase 1: Grasping Taylor's Core Idea.
Taylor posited that to prevent discord and disputes, each worker ought to take direction from a single boss.
Phase 2: Defining Unity of Command.
Unity of command is a managerial tenet stipulating that an employee should report to only one immediate overseer, to whom they are answerable.
Phase 3: Final Verdict.
Therefore, the assertion aligns with the principle of unity of command.