I wouldn't blame scouts for DiPietro. After all, he was a good NHL starter by 20 years old, had a down year at 22 following the year long lockout and then was a top 10 starter at 23 years old. Then injuries destroyed his career. Additionally, drafting a goalie #1 overall is an organizational mistake, not a scouting mistake.
Moreover, the 2000 draft wasn't all that great and there was no legit superstar among the top prospects. Heatley and Gaborik were the next 2 picks, followed by Klesla, Torres, Hartnell, 6 guys who never hit the 200 game mark, Hainsey, 2 more guys who didn't hit 200 games MARCEL Hossa, Orpik and 2 more guys who never played 200 games, etc.
Heatley and Gaborik were very good players, but honestly a top 10 NHL starter would have had just as much organizational value as either of those two. DiPietro appeared to be a top 10 starter until injuries destroyed his career. Lundqvist and Bryz were the only other starting goalies to come out of that draft and both were unknown European guys who went in the 4th and 7th rounds who no one viewed as surefire prospects.
I just can't say it was a failure of scouting to believe DiPietro was among the draft's best players to take with a top pick. I wouldn't ever use a #1 pick on a goalie, but I can't blame the scouts for rating him as a potential top end NHL goalie.