comparing Bob Cousy to Steve Nash is ridiculous. Stevie has MAJOR advantage in every single category. he has better size, better speed, better quickness, massive gap in ballhandling, WORLDS away as a passer (hell, Steve Nash is the master of the left hand... Cousy couldn't even use it

), WORLDS away as a shooter.
@pointforward
Cousy wouldn't make starting line-up on the Lakers over Derek Fisher, because he doesn't have 3pt range, can't play any defense whatsoever, doesn't jump on his shot. somebody mentioned Chris Quinn, but he does have a much better jumpshot.
if you'd like to have 60s basketball today, you'd have to limit black players to 1/3 or 1/4 of the league. then you make drafts regionally to 8 teams. imagine ~80 rotation players in today's league, and ~50-60 of them being white. then imagine all of them are american, because there are no international players in the NBA.
who would dominate ? Joakim Noah would be top notch center. Chris Quinn would be absolute top tier of the PGs.
today's top20 white americans in Win Shares (just to see how it looks like):
1.Brandon Roy (not sure if he's 100% white)
2.Deron (not sure either)
3.Jason Kidd (50% white)
4.Noah
5.Redick
6.Murphy
7.Andersen
8.Luke Ridnour
9.Jason Williams
10.Kevin Love
11.Nick Collison
12.Mike Bibby
13.Steve Blake
14.Brad Miller
15.Ryan Anderson
16.Matt Bonner
17.Mike Miller
18.Kirk Hinrich
19.Jon Brockman
20.Chase Budinger
so either 60s were filled with some unbelievable talent in terms of white americans or level of play was way lower than it is today. keep in mind that white players were at least 2/3 of the entire league at the time and there were no international players.
what we certainly know is that if we played by all 60s rules today, with 2/3 or 3/4 players who are white americans on 8 teams, the level of play would be lower. the gap would be massive.