It would be interesting to compare that list against all of the lotto picks from the past 15 years and who they are and how they ended up.
But if you did that you'd have to also do a list of all the non-lotto picks from the past 15 years and see how many even lasted in the league. You'll start to realize that the Rajon Rondos and David Lees of the world are very very rare.
An interesting list would be to take Bill Simmons' hall of fame Pyramid ( http://www.basketball-reference.com/awards/simmons_pyramid.html ) and see where those guys were drafted.
Fair to say that most franchise stars are spotted early in their development. Also fair to say that most champions have a superstar-level player on their team. It's not hard to understand why Ainge is picking right now to blow this team up and bottom out. It's a no-brainer (although cold blooded) move and we'll be dancing in the streets in a year when KG and Pierce are retired...even if we get stuck with a #9 pick or something.
Well since the 'to tank or not to tank' debate revolves around a top 10 pick and its impact on the future of the team, why even look at the lower draft picks? We all know that there are always going to be some lower picks that turn into all star players, but the percentages are extremely low. DA has actually done a great job finding the late 1st round diamonds.
What I would be interested to see is really the % of lotto picks that turn into franchise players and the % of those that are still with the team that drafted them. I would expect the 2nd number to be pretty high because teams don't want to give away their best players. But we all know it happens.
I think the big issue with 'tanking' is people's perception that we are going to lose on purpose. I don't think we will be doing that. But I think that even if we trade Rondo that we aren't going to be bad enough to get into the top 4-5. There are some bad teams out there....
If you can't get that high, then there needs to be consideration in keeping Rondo. Really hard to predict.