If you were a waiter, you could ask the waiter in line next to you to help out—to put your toast in while you ran off to start your egg. But when you have to depend on someone else, the results are likely to be less predictable. As the manager, you could add another toaster, but this becomes an expensive addition of capital equipment. You could run the toaster continuously and build up an inventory of hot toast, throwing away what you can’t use but always having immediate access to product.
