Earlier quoted context omitted.
> Putting the whole team in a room every week is just going to churn the plan constantly Yes, that's the point, that after each week (or two) of work, we've learned more and the plan already is outdated and needs to change. > inputs likely aren't changing with that frequency In my experience, they absolutely are unless you're building the simplest CRUD app that's identical to one you've built before. The inputs are l…
I don't think that's the case for most of the substantial software projects. The plan for the Linux kernel doesn't change each week (do they have "PMs"?). 15% seems very excessive. Almost a whole day a week and two days lost of deep work. Try to aim for 1.5%. Do as much of the planning as possible without a meeting.
How do people think Apple develops completely new product lines like the iPhone, iPad, watch, etc.
There's a lot more up front planning (and yes .. of course, course corrections) than a lot of agile advocates want to admit.
Most agile hyped up senior management I've met just use it as an excuse to be derelict in their ability to plan anything.