The planning phase sets the foundation of how to complete the project. When this phase is not executed properly, then project could be terminated or not worth the money for funding. It’s a pain to go back and re evaluate what needs to be done, I think it needs to be done at times to make sure the project can come to fruition. Thus I think that you have to re-plan the planning phase to incorporate the new change in “staff” or situation. I think it should all still come together quite easily since the company has already approved it the first time.