This is quite simple. You put KG in the block more often, have Krstic away from the basket, and have Pierce and Rondo penetrate.
That's the type of offense we should run constantly, with players in that role.
What I'm seeing a lot of is Krstic getting the ball in the post, and pick-and-pop plays with KG. While KG is a good jump shooter, this is no way to run our offense. And when Krstic is setting a pick, he's rolling instead of popping, again, not the way he of use.
If Krstic's role in our offense is one of a floor spacing big, let's start using him like that. Else, he's wasted and not only do we end up with an ineffective offense, we are worse on defense with nothing to show for it.