Final answer:
When adding workers to a project, the project's scope typically does not change; however, there may be a need to train new workers, increase intercommunication, and repartition the work, according to the Mythical Man-Month. This can lead to diminishing returns due to the Law of Diminishing Marginal Product.
Step-by-step explanation:
According to the Mythical Man-Month, all of the following generally occur when you add workers to a project: train new workers, increase the project team's intercommunication, and repartition the work. However, changing the project's scope is typically not a direct consequence of adding more workers. In the context of the Mythical Man-Month, adding more workers to a project, especially beyond a certain point, can lead to a decrease in productivity due to diminishing returns. This is because each additional worker adds less to the overall productivity and increases the amount of coordination and communication required, potentially leading to a decrease in the efficiency of the team.
The Law of Diminishing Marginal Product describes this scenario whereas more workers are added, the marginal product of each additional worker eventually decreases. This concept stems from the limited amount of fixed capital and the increased complexity in coordination resulting from a larger team.