Thread:Saris Khan/@comment-5020614-20130127210533/@comment-9330998-20130130105604

They are not the strongest yet, but they possess the greatest potential. And to clarify the criteria Shoki used to choose them:
 * 1) They are more powerful than most of the older and experienced Captains (Kinzoku, Danko, Risa).
 * 2) Shodo is stronger in terms of raw power, but he can't control it half as good as they can.
 * 3) Kenpachi and Fukushima are more powerful and experienced, but they are both too aggressive to easily subdue an inner Hollow, unlike the composed Kuragari and Tadayoshi.
 * 4) Few Shinigami would agree to accept a power-up of such a nature, but they are both willing to go to great lengths to protect the Soul Society.

Kuragari has "just" an innate talent; if any of them could be considered a true prodigy, it would be Tadayoshi ^^