I found another interesting variety of Decision Driver in my story just now...
You know how a Decision Driver forces Actions? Well, one interesting thing about Decisions is that they can take a while -- imagine a group debating a decision before putting it to a vote.
And then imagine you have one character who listens to the debate and can see which way the wind is blowing, and does something because of that (forced Action) -- even before the Decision is put to a vote.
Is there anything wrong with that structurally? Not that I can see. It's really just that the Decision occurred and became a Driver before the vote took place. The Author is saying that the group knew what they were deciding before the vote; the vote was just a formality.
Another way to look at it is that part of the Decision happened in the reacting character's head -- he decided the vote is going to go a certain way, and that forced his Action. So even if he were wrong and the vote went another way, I think this could still work.
Details from my story...
My Midpoint Driver is now* this big Decision that the cat Elders make, to involve Waverley Manor in the affairs of Other (an alternate Earth with magic), to help out refugees and aid the budding alliance of animals in the Other War.
The main Actions that this forces is, because Grandmother Cat does not agree with that decision at all (she has spent her life keeping Waverley Manor out of the affairs of Other), she scuttles Waverley Manor's most important magic. And then she hands over control of Waverley Manor to the cats' enemies, who promise to keep it out of the Other War.
What's interesting about this is that she does some of that BEFORE the Decision is actually finalized, i.e. before the Elders put it to a vote. As in my example above.
* I say now because this is based on the new Midpoint of "surrendering Waverley Manor" which came out of a Subtext Writer's Room session with @jhull. I previously had a different Midpoint, but this is WAY better because it's strongly driven by and drives the OS Problem of Oppose making things worse.
You can also see the OS Focus of Help (refugees' helplessness, aiding in the war) and Direction of Hinder (getting refugees out of harm's way, scuttling Waverley Manor's magic).