When browsing the site of the new Volvo C30 (http://www.volvocars.se) I visited the site's "workshop", where Edward de Bono talks about creativity and thinking outside the box.
In one video Mr. de Bono says: " One of the very important things about creativity is that the new idea, the creative idea, must have value. Far too many people who believe they are creative, think that just being different for the sake of being different is creative, it is not. And that is what gives creativity a bad name."
This is true also when introducing new software methodologies. Always remeber the mantra of Lean: "maximize value and minimize waste". Make sure that the changes you introduce are actually creating value and not introduced only for the sake of being new and different, because then they are waste.