I'm not sure what the answer is but The NBA really needs to address the disparity in its league. Every year it seems there are only 2, 3 teams expected to win it all, and barring major injuries, one of those will. Makes for boring, predictable playoffs. Say what you will about the NFL, but most teams (outside of the Browns, LOL) enter each season with some hope of making the playoffs. And the 5th or 6th seeds have proven they can get on a roll and win the Super Bowl, which keeps fans engaged.
@TVJ - you make a good point about the OAD's. If the NBA would adopt the NCAA baseball rule (or something similar), then it stands to reason that there should be more mature, better prepared players coming out of college. For the few truly transformational players that come along once every 5-10 years (Lebron, Kobe), let them go pro right out of high school. Or just let anybody enter the draft right out of HS if you want, but if you enroll in college, then make it 2-3 years before you can enter the draft. Better overall players make for better, (and hopefully) more balanced teams. For the casual NBA observer like myself, I would watch more playoff series if it weren't so lopsided. As it stands now, I've not watched any playoffs. I Might tune in for some of the finals but at this point, I don't really care.
One last thing that I heard recently... Larry Bird turned 23 during his rookie season. Can you imagine that happening today?