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:
Read the paper to see the rest!
http://www.tableausoftware.com/learn/whitepapers/driving-change
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