I think the monitoring and control. In my experience, seldom I have been a part of a project and all phases ran it course smoothly without monitoring it and making sure that when the planning is being don’t that the deliverable that were determined in the initiation phase is meet. Or that the execution phase also insure the plan is carried our meeting the requirement in the initiation phase. I think that the monitoring phase is extremely critical to the success of the project. I don’t think there is a lease important phase because they all build on each other. Therefore is on phase is not treated with great importance the next phase will suffer.