Jeff Sutherland, one of the founders of Scrum, recently wrote an artilce on MSDN titled "Ten Year Agile Retrospective: How We Can Improve In The Next Ten Years". The article captures key takeways (ten years later) from the original signatories of the Agile Manifesto. I'd highly recommend giving it a read.
Great post. Not the only reason
<a href="http://www.agileexams.com">Agile</a> may fail, I think, but certainly one of the key challenges for the
<a href="http://www.agileexams.com">Agile</a> community to fess up to and face up to.
I wrote about some other challenges in my recent "State of Agile" post here http://www.agileexams.com/