I love this post from Thomas, of the Two Cultures blog called, Social Constructivism. I think the concept of social construction of knowledge and organization culture is vital for all managers. It's a meaty post, so check it out.
If our organization cultures are socially constructed, what does this mean for managers? For training professionals? For executives?
The notion offers a wonderful opportunity and poses two concerns. The opportunity - change the conversations, change the culture for the better. The concerns - 1) if you don't change the conversations, the culture will not change and 2) conversations NOT for the change will make progress doubly hard to achieve.
I believe this is at the core of what makes a manager great and what makes some managers utterly useless.