Introducing new ideas
One of the nicest things at AYE was a complete surprise: actually seeing a copy of the much-anticipated book "Fearless Change: patterns for introducing new ideas" (by Mary Lynn Manns and Linda Rising). It's full of illuminating ideas and contains strategies applicable in many project situations. (An overview of the material was presented at XP2004 and you can see the slides online.)
NB: Harvard Business School Working Knowledge recently had these wise words to say about "The challenges of paradigmatic change": Third, be patient and wait until the time is right. Paradigmatic change requires a unique set of conditions. Sometimes, the organization will reject the change several times before a critical mass of managers finally recognizes the need for change and the utility of the new paradigm. Focus on winning the war and not every battle.