I love Kuyt as you know but I think he's hit that downhill curve pretty hard. He never looked like he could hit a barn door from distance (well, bar in his early days), but now he doesn't seem to even be getting into those poachers positions, he just seems well off it even compared to his worst in previous seasons.
Carroll excelled in a different system to this, and even then that was only a season and a half of really solid goalscoring form. For what it's worth I actually think he's a top quality finisher, but he isn't getting all that many chances. Given a goal or two he could become more clinical again but is he going to get that many more chances? He just doesn't seem to fit, I hope it changes
As for Suarez I do agree but I think to become that he needs someone to take the pressure off. I think at this stage it's going to take quality signings, I just don't see it happening from within the squad.
Of course, I'd also be happy to be proved utterly wrong on this one too.