Devin Harris is underpaid when you compare him to other PG's and setting value to him is going to create disappointment. Rondo is not Chris Paul or Deron Williams, but the kid is right there with the other top young PG's in the league. His shooting is not a significant positive, but his TS% is reasonable for all the other aspects that he brings to the game. The tempo and the defense are a major plus.
The biggest concern is will he "continue to improve" and how much of his success is a byproduct of the Big 3, but his development has been a very important component to our success.
As I look at the option of trading him for a pick in this draft, I get kind of disturbed ... because I believe this draft is poor once you get past Griffin. There isn't a G in this draft with similar upside.