It would be pretty cool, but the only way I think it would work is if they restricted countries from having the same players on the full team and the 3x3. I mean if the goal is really to have the smaller countries participate then you can't let countries double up or only the good countries will be in the 3 on 3 tournament as well. Sure the US has so many good players it won't matter for them, but it will for a lot of countries, like say France, Brasil, etc. where there are 8-10 elite talents and then just a bunch of ok players. And a country like Great Britain will be a lot more competitive in 3x3 and thus might not even field a full size team.