-With the curtailing of hand-checking starting in the 04-05 season the league's emphasis shifted from power/position to speed/length.
-Fundamentals have continued to break down since high schoolers were allowed to enter the NBA in mass in the mid 90s. These flawed players became role models for today's guys.
-The high number of successful European players has turned the game even more finessy and has made it fashionable to abandon learning the basics of post play.
-Mike D'Antoni's "seven seconds or less" attacks of the mid 00s have negatively impacted offensive basketball. The tried and true axiom of making the opposing defense play hard for 20 seconds no longer exists.
-Three balls are now launched too often and by the wrong players.