Taking on that second difficult challenge - a starting point for me is at what level do you try and intervene. Individual? Team? Business unit? The whole shabang? I tend to think that the smaller units are the place to look to institute change, almost as small counter-cultural units against the bigger cultural norm. And then you run into the challenge of scaling. Yes, you may get it done with one team or a few. But how do you stretch it across the whole organization and make it a norm?