I think no single phase is more important the others because the end project results in the efficiency of all the phase combined. However, I think the initiation phase should be given ample consideration as it set the tone for the rest of the project. Once the initiating phase is perfectly elaborated, everything else falls in place. This step is basically like the blueprint of the project. When elaborating the planning phase, communication should be highly valued. Lack or deficiency in communication could result in major setbacks and can possibly undermine contracts with clients. I think the less challenging step is the closing phase because if the initiation and planning stages have been done smoothly, the closing step should be relatively short and easily manageable.