scarbados has it exactly right.
Even though the "continuity" problem was certainly not an issue with the Dream Team (or with previous college-player teams we sent to the Olympics, except for '88), it is a big problem now. We send all of these guys over to the Olympics who are "athletic", which looks great on ESPN, but then they get their heads handed to them by European teams that are fundamentally sound.
A BRONZE medal at the 2004 Olympics?...that's an absolute disgrace.
European teams are getting better, and our guys are getting worse. We now have an NBA full of point guards that can't shoot, "shooting" guards that can't put the ball on the floor, small forwards who can't rebound or play defense, and centers who can't do ANYTHING. In Europe, their best players can do ALL of these things.
I like the idea of sending a team like the Pistons or the Spurs, along with, as you suggested, filling out the team with some pieces they might be missing. I don't think that will happen anytime soon though... Stern is interested in promoting the individual stars of the NBA, and not so much the teams themselves.
But the only way the US is going to win a gold medal anytime soon in international competition would be to send an actual NBA team, or at least the starters of a good NBA team, along with a bench that can fill the necessary roles.
I'd just like the see the USA back on top in basketball, and it's not going to happen if we keep sending superstars like Lebron, Carmello and D-Wade.
The 92 Dream Team put the rest of the world a good 30 or 40 years behind us in basketball. Now, 15 years later, the rest of the world has caught up, because we're getting worse. The European teams are taking the style of basketball we taught them in the 60s and using it against us...and it's working beautifully, for them...
Forget this all star crap... just bring home the gold! It's embarrassing as an American to watch our "all stars" get their heads handed to them.