Not to be argumentative, but the 2012-2013 team had a few upperclassmen NBA players. There was Seth Curry, Mason Plumlee, Ryan Kelly (didn't have a long NBA career but a senior) as seniors who all play or played in the league. The problem with that team, it just wasn't very deep. The other guys were a sophomore Quin Cook, freshmen Rasheed Sulaimon and Amile Jefferson.
Now, if you are saying Duke hasn't had a team like 2010, 3 seniors and 2 juniors starting, then I would agree. That team had 6 guys play in the league.