Webber was the only one who left after 2 years. But the fact that a big man dominated as a freshman was a sea changing event. You have to remember that Webber as a freshman was the third or fourth best player in college basketball. He would have been a top 5 pick coming out as a freshman (along side Shaq, Mourning, Laettner and Jim Jackson). It is hard to imagine in a post-LeBron era how revolutionary that was. Big men need time to develop and Webber's precocity made him draftable. Once Webber made young big men "draftable" in a manner that only swing men should be, it radically changed the bargaining solution between NBA teams and young big men, given that the evaluation of their talent involves far more "noise" than swing men. Ironically, this incentivized big men declaring for the draft as early as possible as all agents benefit from the inability of teams to evaluate them. The 3 year rookie contract destroys the incentive for teams to invest in developing big men who then leave. And since they are all leaving early or skipping college, where they typically used to be developed at Georgetown and Houston, the value of big men then increases forcing NBA teams to take bigger risks to grab big men who are declining in absolute ability. Enter Darko, Greg and Yao. College basketball used to be dominated by big men factories like UCLA, Georgetown, Kansas, Louisville and Houston. UCLA and Kansas have managed to reinvent themselves almost totally, but the others are shadows of their former selves. I am not convinced at all that Tim Duncan is really a great big man so much a well developed big man relative to the previous era. Most big men enter the NBA completely undeveloped and no team has an incentive or the coaching personnel to truly develop big men, so many wash out. I am not at all convinced that there has been the kind of decline in talent that results would seem to indicate. Look at the NBA drafts on Wikipedia ending in 1992 and those since and just look at the Centers and Power Forwards. I haven't checked, but I think Dwight Howard lead the league in blocks with a total that was like half of what Mark Eaton used to put up. And I doubt any body here even knows who Mark Eaton is. He certainly isn't in the Hall of Fame. As a Rockets fan, I have no (and never had any) hesitation in saying that Yao Ming is Ralph Sampson and Yao could reasonably end up in the Hall of Fame.