I thought the reasons were pretty obvious and did not mention them. But, here it is:
In the last 3 test series Kapali's batting performance was very poor.
As for Sujan, his average is 12 for batting and 64 for bowling. That is not good enough, even for BD. We all know that he is trying hard and I think this is the best that he can do. In my opinion, there is a better choice. I beleive Musfiq has the potential to improve and Sujan is only going to go downward.
[Edited on 4-11-2003 by bhobishshot]