I recently came across this article on nbadraft.net and I think it's hard to argue with.  It basically makes the point that a superstar (if not more than one) is generally a prerequisite for winning the NBA title.  Also, check out the link to Robert McChesney's article on Real GM called "The SuperDuperStar Theory", which was written prior to the above article.  Perhaps that top draft choice for 2007 will yield a future superstar.