I have a different take. I think they have had far more opportunity with more players than ever, and yes, are worse as compared to their competition.Well the same can be said about Macci, or Bollettieri. That's not to say they are worse as a coach than they were 10 or 15 years ago. Most likely they haven't been lucky or blessed to get to work with another Sampras or Sharapova or similar. Luck of the draw I guess.