Thanks guys - this helps. I will start D like you said, when I'm playing 2-3, and use A to back him up.
When I go to 3-2, I think I will bench A altogether, because I've got two other PFs that are really good, so I have options on how to construct that lineup. I'll likely play 3-2 much more often than I play 2-3, based on the rest of my roster.