http://deltascape.blogspot.com/2012/07/who-will-be-math-education-savior.html
I think David has it exactly right. I have moments when I wish for a Freudenthal-like figure to organize and inspire math education here like the Dutch saw 40 years ago, but real improvement will come one teacher at a time. We can support those teachers with our respect, trust, resources, and with opportunities to learn from and inspire each other.