If you haven't already, check out this whitepaper on how to drive change in your organization. Change can be hard, but when you know you've found a better way to do something, there are good, practical ways to have others come to your side.
The paper outlines 6 steps to drive change; here's a snapshot at 2 of them:
Start small: Show results, however small, before you get involved in a massive project.
Re-create the wheel: Reproduce what’s been done before, but with the new approach. This gives people a stepping stone—they know they won’t lose their current capabilities. Then you can build on that.