Ask HN: Changing Culture

Does anyone have experience of changing management culture? How do you get managers and business types to realise that they are harming the business, morale, engineers and ultimately the product/customer by constantly splitting and reassigning resource. In short how do you take the power back and empower engineers to make logical and thought out decisions where business types and managers including ex engineers are hell bent on treating engineers as a bucket of resource that they can arbitrarily assign to projects as and when their priorities change (even mid-sprint). How do you force them to cut out the noise in order to allow engineers to build momentum, purpose and ultimately great products? How do you move away from a project centric business towards a product centric business which possesses a more wholistic view and considers more than just the end goals of a project I.e. how other features relate. Does anyone have experience of changing culture to this degree?