I think Moloneys best position is in the centre, right in the guts. Most people have listed Mclean there, but I'd prefer Brock to be on the ball, always at the contest, where ever it may be. Who else would you rather be in the centre?
Miller is at CHF, because that's where we need him, and that's when we play our best footy. He gives us a lead up target to aim for, and while he doesn't kick enough goals, he is the best option there at the moment. While I think Dunn is the better player, and will claim the spot in the future, he is still too undeveloped to hold down such a key role at this stage, and that's why I'd play Miller there, and let Dunn continue to develop, bulk up, and then fight for the spot.