I think Kuyt only gets so much criticism because of his poor goal ratio, but lets face it, your more likely to see kuyt in around the centre circle rather than in the box. He's used for his work rate more than anything, which comes in very useful in games like away in europe, but in the premiership he doesnt fill me with much confidence.
I actually think the current formation is unbalanced by kuyt. With babel on the left he drives in and towards the box, something which kuyt doesnt do and does not possess the speed, skill or ability to drive in and beat players like babel can. I think if we're going to stick playing with the 4-2-3-1 we need to go for an attackin minded speedy player in the mould of babel for someone to fill in kuyts role on the right.
Kuyt seems like a decent guy who really does put the effort in and plays for the shirt, and i admire him for it but with the lack of ability i'm afraid he's never gonna be what we need in that position.