Usually its the top order specialist batsman becomes specialist slip fielder. Mark Waugh, Dravid, Ponting, Kallis they are all top order batsman who are some of the successful slip fielder.
Why ? It requires focus and concentration with good reflex to make a good slip fielder.
Why do we have none ?
Look at our top order's batting record, you know why.
They are mutually exclusive.
Judging by that, either Naeem or Anamul should be specialist slip fielder.
Verily, in the remembrance of Allah do hearts find rest [Al-Qur'an,13:28]