Gilbert Arenas was/is a great player because of his combination of outside shooting, first step, and ability to finish or draw contact at the rim. Using those skills, he became a superstar by shooting a lot of threes, layups, and free throws.
But what do you think happens to that type of player when the opponent is able to pack the paint? Goodbye layups and free throws. The only shots left are threes, but without the threat of the drive to the basket, those are now contested shots.
So, why is the opponent able to pack the paint now? Simple - our bigs are worthless away from the basket, so the opponent's bigs are free to just hang around the paint, ready to stop Gilbert's drives.
The crowded paint is also a stifling problem for Blatche, Thornton, and Wall.
One solution is for our guys to get better at the pick and roll. They should work on this anyway, because there's a lot of potential there. A good pick and roll gives our bigs something constructive to do away from the basket and opens up the paint for drives and cuts.
Another solution is for one or more of our bigs to develop a decent outside shot. Booker is showing some promise. They're not dropping yet, but hopefully they will soon.
Putting Yi on the court fixes the problem but introduces a bunch of different ones.
The bad news is that with our current personnel, we currently have no viable solution. The good news is that we have lots of different player development routes to explore to find a solution.