As Dr.Simon mentioned, if you failed to plan so you planning to fail. Planning phase is very important in any Medical Device project. Its important to identify critical interfaces in your project, resources you need, milestones you need to achieve and when you’re going to have design reviews. Its important to have a plan for each task in the project, so during the project you don’t have to go back and find out planning pitfalls, the your project will be delayed. I think you have to work with the Project Risk Management before completing the project plan, so you will plan better. Also, before moving backwards in your project plan, you need to make sure that your in the project budget.
Finally, as we learned, you need to include risk management before planning. You will need to ask your project team for a solution before going backward during the project.