As I talk with various groups about what I can offer, what I want to do in my next gig (do we ever stop answering the "what do you want to be when you grow up" question?), I find myself explaining this ALL the time:

I think Barry Hawkins answers it very well.  :)

And it describes me pretty much to a 'T'.  Many many teams, projects and a variety of startups in a variety of industries.  All of which leads to a significant humility and an aversion to dogma.  :)  Give it a read.  I think you'll enjoy!