That's definitely cleared things up for me, Jim. I always struggle to envision internal OS domains in movies, so a tangible goal makes it a little clearer for me.
As for the Decision driver, I could go Action OR Decision, but there's no doubt in my mind that Kevin is 100% willing throughout. So if he's a Be-er, as Jim has convinced me he is, it has to be Decision.
I watched it again on Christmas Day, but still struggled with seeing it as a Mind OS. However, I may revisit it with the new knowledge of this goal and try to see it from a new perspective.