1996-2006 1st round picks
QB: 27 players selected, 17 busts. 63% bust rate
RB: 33 players selected, 17 busts. 52% bust rate
WR: 46 players selected, 28 busts. 61% bust rate
TE: 12 players selected, 5 busts. 42% bust rate
OL: 49 players selected, 26 busts. 53% bust rate
DL: 71 players selected, 43 busts. 61% bust rate
LB: 40 players selected, 19 busts. 48% bust rate
CB: 51 players selected, 32 busts. 63% bust rate
S: 10 players selected, 5 busts. 50% bust rate
Total: 343 players selected, 193 busts. 56% bust rate
Quarterbacks, receivers, and running backs were fairly straight forward. Their success is clearly measured in statistics.
Any QB that had some level of real success in terms of winning and personal achievements, I didn't consider a bust. I didn't consider Michael Vick a bust, while some could argue that he was. I didn't consider players who were effective for awhile like Culpepper a bust. But there were plenty of obvious cases...Druckenmiller/Leaf/Couch/Akili/Carr/Harrington/Boller.
Running backs were even simpler because teams were quick to get rid of RB's that didn't perform well. The 2006 RB's were more difficult because Bush/Maroney still could turn things around. I did consider Reggie Bush a bust though relative to his massive hype and contract.
The offensive line was the hardest to evaluate. I had to focus a lot more on personal achievements. So I immediately ruled out all the lineman who had success for multiple years in terms of pro-bowls etc. But there were other lineman like Vernon Carey who aren't really talked about but are very good lineman. And then guys like Leonard Davis who have been in the league a long time but were busts with their original team (Davis only had success after switching to guard and going to Dallas). It was pretty subjective at this position. D-Line was similarly difficult.
Linebackers and defensive backs were much easier to assess, because they are glory positions on defense that are stat-oriented. It was pretty clear-cut at those positions which players were good and which were not. Keith Brooking/Andy Katzenmoyer....or Lito Sheppard/Tye Hill