I think everybody's thinking about roles in some way or another when they come to the table. But how we think about roles is going to be as important as what we think about them. Today I want to start by talking about how I encourage people to think about them and why I do that, and over the next few weeks I'll talk about how roles work in some other games, and whether they work well or not. 4th Edition D&D focuses on roles, and I'm definitely going to talk about that next week, once we get through what roles mean.