Task Assignment

It is often impossible to do everything that needs to be done… at least doing everything yourself. Therefore, it is often useful to delegate certain tasks to other people. Delegation focuses attention and increases productivity. By assigning lower priority tasks that are typically easier to do than higher priority tasks, allows delegators to better focus on more important and more difficult assignments. "Learning to trust is one of life’s most difficult tasks.
— Isaac Watts"

People with assigned tasks will learn new and valuable skills when working on delegated tasks that that they have never worked on before, increasing the productivity of the delegator and the entire team. All of this helps manage time effectively.  For instance, when less skilled employees work on less skilled tasks, this allows skilled people to concentrate working on more skilled tasks. As a result, delegation helps manage the limited time of more skilled employees.