Does Change from the Margins Trump Revisiting Constitution?

I was struck in the e-dialogue on Governance that engaging the question of aligning our 3+ levels of government might require revisiting the constitution discussion. I detected extreme skepticism and/or fear of that happening. While I'd certainly like to see that alignment happen in as many ways as possible as fast as possible, I wonder if it is more likely to happen through local community engagement? Something like a viral process that flows across the country and catches people in the wave?? (Ok so I'm being a bit poetic). But I see this happening in some of the community engagement processes, like Imagine [Calgary, BC, Abbotsford,Canada etc.] I also see it starting to happen outside the direct agency of government like through Community Foundations. And several people in the e-audience observed that INAC has a strategy that is leading the First Nations to look at whole community wellbeing. Thinking back to the e-dialogue on Energy, there also seemed to be interest in the various hydro organizations to institute change through several pricing devices. These are all examples (along with the case studies prepared for the e-dialogues) of change from the margins. Do we really need to fear re-visiting the constitution when we can support guerrilla change tactics from the margins? Am I just imagining that change from the margins might trump constitutional talks?? (but get there anyway?)