Basketball has become a sport about offense, and offense only. How many times have you played at the local Y and had some kid score 30 against you but give up 40 because he is lazy on D and won't stop anybody? A select few will play D. How frustrating is it to be making a comback, cut the lead to about 10 and watch a star, in his mind at least, let some guy that's no good hit a wide open 3 because he was too lazy to get over to play D and end any momentum your team had at the time.