Final answer:
Adjusting the project schedule to start a later step due to delayed equipment typically occurs during the Implementation and Learning Phase of project management, which requires flexibility and adaptability to maintain project momentum.
Step-by-step explanation:
The phase of the project management process in which a project manager decides to begin the second step before the first step is completed, due to equipment arriving later than anticipated, is likely to occur during the Implementation and Learning Phase. This phase often involves adapting to unforeseen challenges and making decisions to keep the project moving forward. Adjusting the schedule to start subsequent steps out of the traditional order is an example of the flexibility that is necessary during this phase.
Within the Implementation and Learning Phase, there are a variety of steps and considerations that take place, including developing a design, prototyping, testing, and refinement. These steps are often iterative, as new information from testing can lead to revisions in the design or changes in the project plan. Moreover, managing and adapting to schedule changes are critical as they can greatly impact a project's success. This adjustment may be part of a multitasking environment where deadlines are crucial, and missing one can have significant consequences.