When you talk about change, you might get a lot of resistance or a lot of cheering. Most likely, a mix of the two.
In both cases though, you are not one step closer to the change you are seeking.
And that is because telling about change is only one small step on a highway that also features telling about change again, finding supporters and aids, telling once more, showing what change is, buying in those who are against it, preparing everyone for change, reshaping the change story and spread it a bit farther, measuring change, following up to change, and initiating what comes after change.
A meeting or an email might be a good start, they are never the end of it. Even when everyone agrees. Particularly when everybody agrees.