Re: Danish Kaneria
The problem with Kaneria is that he has very little control of the length which he bowls. Which is very important for a spinner. Kaneria either bowls to short or too full way too often, which makes it easier for the batsmen to hit him for runs...which also is the cause that makes him struggle and go for too many runs in ODI's. Whenever he has bowled on the right length, he has been unplayable.
Rehman seems to be a good spinner, but I believe he needs a little more variety. An arm ball and a quicker delivery added to his arsenal would definetly make him a much better and complete bowler.