Could be an entertaining list. These are the guys that on paper, it would seem that they have all the talent in the world, but when it's game time, they are a liability. List is open to today's players, as well as past NBA players. Also, this list is not about guys that were great but could never get over the hump due to better comp i.e Karl Malone, Stockton, Ewing, etc., but for the guys that tend to infect teams.
Several that come to mind and are aguably in the top 5-10, are:
D. Williams--maybe not top ten, but when it's all said and done, he's going to be on the bubble
World Peace--not a top ten
Latrell--not a top ten