Does Scrum need a Project Plan?
All projects need a project plan. However the Scrum project plan is not detailed into tasks until the Sprint where we’re turning the Product Backlog item into an increment occurs. Until that point the project plan stays at the requirements level and even the requirements are granular at the top level of priority and are pretty coarse at the bottom end of the priority. This is because the project plan is anticipating change and so not a lot of effort is put into the items which are most likely to change. So the project plan itself may layout and anticipate a date, however it puts in no penalty for changing the requirements or the date or the cost.
