subjectively, our defense is better, but objectively, I think we've been top 10 in defense all season long.
I think most of the improvements post gay come from the fact that many players perform better on D when they get touches offensively. In particular, JV looks like a different player defensively after the trade.
And we've added an excellent defender in Salmons and Ross does a great job too. If we keep playing hard, we can move up the rankings even more (defensively).