Smith's Captainship is Above Threshhold

Greame Smith has become the first player to captain in 100 test matches. You have been covering the game from so many decades. How you will rate this achievement?
Smith is a captain who has won test matches against all test playing nation and even in the opposition's backyard. In your opinion what's special about his captaincy?
Do find any captain from current lot surpassing Smith's unique record of captaining 100 test matches?