Nice post.

I think I am an Incrementalist when dealing with problems that require team effort, but slip into Completionist mode when it's just me solving a problem. It's something about rolling up your sleeves that draws the Completionist out. And it's often a pleasant surprise to see that the Completionist approach turned out to be realistic as well.

Or from a slightly shifted perspective, I'd say Incrementalist at the macro level, but Completionist at the micro level -- perhaps it's nothing to do with team vs individual.

-K