Don't bother convincing other people in the org that your idea is good.

Convincing people is extremely expensive, and often doesn't work.

This is especially true when there's a cacophony of other people trying to convince people of other things, making it harder for your thing to stand out.

Don't bother!

Find the people who are already convinced it's a good idea and just collaborate with them.

Successful ideas are naturally viral; more people will notice the momentum and want to join in.

So if the idea works, it will get easier and easier to convince people to join in.