[CuriousSkeptic]

The tricky part is that agile is supposed to help those people sleep better. But it all kind of depends on your ability to explain to them how agile does that.

Of course budgets and deadlines has to be set. Agile is not a way to ban those, it's a way to allow them, even if forecasting is impossible. It's about saying, well at that date I can promise to have kept under budget, and will have something that more or less reaches the goal of the budget. It will not, however, be what anyone is imagining right now, let's have fun discovering what it'll be.