While the team as a whole could improve on defense, Randolph has given New York a boost in the front court.
When New York made the trade for Zach and ESPN talked to all those happy Knicks fans, I would have put money on them regretting it all by now. I was convinced these poor deprived basketball fans had no idea what they were getting themselves into. As it turns out, fate had much worse things in store for them. With things as bad as they are, a statistic producing machine like Z-Bo is the least of their problems.
His stats are largely shielding him from criticism, something that wore off in Portland.
If the situation improves to the point where such nit-picking can resume, fans in NY will realize that Zach's greatness is limited to the box score. When you don't see that he needs a slow offense and near constant possession of the ball to get those points. When you don't see the lay up line his total lack of defense brings to the other end of the court. There are scenarios where I can see Zach being a huge offensive asset to a winning team. He needs to be surrounded by good defenders, both on the perimeter (because he can't help) and inside (because he needs help). Chicago comes to mind. Lining up next to Eddy Curry, not so much.
So Z-Bo, pray things don't get better. In fact, things getting worse is a reasonable wish. Hope that an intern shows up pregnant claiming that David Lee is the father. Cheer for Isiah to keep his job. Encourage Nate Robinson to stab somebody. As long as you got the double-double on lock, you're gold in NY.