Elon presents a very different challenge to our defense. This is a pure perimeter oriented team. They don't get to the line very often, they don't pursue offensive rebounds, but instead they bomb away from 3. They're 10th in the country in terms of the percentage of points they get from 3s, 19th in 3 point percentage (40.9% as a team), and over 40% of their field goal attempts come from behind the arc. Sebastian Koch and Tanner Sampson have combined to make 86 of 177 from beyond the arc - nearly 50%. I expect Hood will get the main job chasing Koch around as he's the only one on Duke's team who matches him size wise and has the quickness to cover him at the perimeter.
Of course, there has been no more consistent trend for Duke defenses over the past dozen years than not allowing opponents to shoot 3s. Duke is committed to chasing teams off the 3-point line. Often times, this leads to easier penetration and open 2s - expect some of that tomorrow when playing Elon. But if we can limit their ability to bomb away (and force 3s to come off the dribble rather than off the pass), we'll take away the most effective part of their offense and make them try to beat us by playing a style other than what they most want to play.
When Duke has the ball, it should look to give Parker, Hood, and others scoring opportunities inside. Elon has not been good defensively and has been particularly terrible inside the arc - they give up over 50% shooting on 2s, they foul a ton, and they don't block shots.