i hate the lottery system. yeah, it sort of discourages "tanking", but not really, as teams still haven incentives to lose as many games as possible to give themselves the best shot of winning. so...it doesn't really address the main criticism of a record-based draft. of course...teams might just stink. that's the real flaw. the worst team in the league...is often the worst team in the league, tanking or not. and yet, they only have a 25% chance of landing the top pick. that's devastating when there is a clear franchise #1 pick, and they don't win. the draft lottery rewards...luck...and doesn't even fix the "tanking" problem (if teams are actually tanking, which they may not be). imho, its the worst draft system in pro sports, by far. the bobcats have not been as lucky as the thunder (the luckiest team in the lottery lately), and look at the difference.
well, the draft itself also takes some skill and some luck.
and regarding the thunder, i assume you mean in the 3 consecutive years (07-09) where the Thunder drafted Durant (2nd), Westbrook (4th), Ibaka (24th) and Harden (3rd). let's examine.
In all 3 of those years, the Thunder/Sonics had a consistently worse record than the Bobcats and thus, understandably drafted at a higher position.
Thunder 07: 31-51, 5th worst record ->2nd pick (lucky)
Bobcats 07: 33-49, 8th worst record -> 8th pick
Thunder 08: 20-62, 2nd worst record -> 4th pick ("unlucky")
Bobcats 08: 32-50, 8th worst record -> 9th pick
Thunder 09: 23-59, 4th worst record -> 3rd pick
Bobcats 09: 35-47, 12th worst record -> 12th pick
Following that the 'worse team should have better draft position', it pretty much holds true for the Bobcats-Thunder comparison.
I know hindsight is 20/20 but furthermore, look at the selections the bobcats could have made. These are players who were drafted after the bobcats made their pick, while also being in their pick's range (e.g. in Noah's case, the bobcats picked 8th while Noah was picked 9th):
2007: Joakim Noah (instead of trading for J-Rich)
2008: Brook Lopez (instead of DJ Augustin) AND Serge Ibaka or Nicolas Batum (instead of Alexis Ajinca)
2009: Jrue Holiday or Ty Lawson (instead of Gerald Henderson).