A company will start to develop new software, they decided that they will use Scrum and they already identified 1000 features for the software. Experts say they should Invest the 1 or 2 Sprints just for planning and documenting the Product Backlog items, before beginning the development work. A thorough planning and healthy Product Backlog will help them be more organized before start and increase the chance of success.
As an Agile Leader, would you support this decision?