Unlike the other phases, which focus more on short term action, the Migation Phase is all about long term planning and future foresight, which is important if you want any Emergency Management Plan to succeed. That the front end of the Migation Phase, and it what its main purpose is as the first step of the Emergency management cycle.
However, the Migation Phase can also be used at the end of the cycle as a part of the Recovery Phase. But you have passed down instructions that our work is not to overlap any of the other phases, and that will put huge cracks in the cycle and utterly doom it to even working as we all hope it shall. If we are not able to work hand in hand with the Recovery Phase in helping at the tale end of problems, how are we supposed to know how to better prepare for them next time In order for a successful Migation Phase, we need it to work on both ends of the cycle, at the start and the end, and for it to work hand in hand with the Recovery phase to help better prepare ourselves for an emergency next time it may occur.
Working with the other parts of the cycle are just as important if we want to be successful.