Is it the PM or the individual team members? I was listening to PM podcasts and haven't heard this (or missed it). The SPOT kickoff cast says PM knows at least the first 2 weeks or so and assign that to team members.
I'm assuming it has to be specific team members because they "know" what they are doing but might no have the motivation to break down tasks to small ones and will probably take a loooong time to do so. But if the PM does it all, it might not reflect the real tasks needed.
Any casts that have already been released about this or any guidance on how to fill those smaller tasks?