Now, I will grant that Duke needs someone who can guard the other team's center. Obviously that wore down Singler last year and another player or players who could share that load would help the team. But I'm not sure Zoubek's feet are quick enough to do that effectively, so I'm not sure he'll ever be that guy. And I'm not sure Lance will ever be strong enough to guard the biggest players. And freshmen tend to have a long learning curve on defense at Duke. Still, I think we have to hope that Plumlee or OC are able to take some of that load and/or that Thomas got stronger or Zoubek got quicker.
Sorry, I'm meandering a little. I guess my point is that it doesn't matter if Plumlee is a "finesse" player on offense. If he (or any other big man on the roster) can bring it on D then the team will be fine.