I think you have pointed out the most important factors for project success. Communication comes as the most important out of all of them. Communications should be well defined and efficient in order to prevent delays. Each member of the team should be prompt in their availability and their fast responses when needed. Defined plans are always essential to start up a project and important to have a successful and completed project at the end. Managing the scope comes next. I would add one more factor to these five, which is careful risk management. Project managers know that things rarely go off exactly as planned. During the planning process, it is vital to produce a risk log with an action plan for the risks that the project could face. Make sure all key stakeholders are aware of your risk log and know where they can find it. If something happens, then the team can quickly resolve the issue with the management plan that has already been set in place. This will give the team confidence when facing project risks and help the clients feel comfortable with the project’s progression. Having a central online database of project information is vital to ensure you don’t lose crucial project momentum during the project, but also in the event of losing key participants, you can quickly get your new team members up to speed.