Who are they supposed to surpass?
Who do you think team hebi, rookie 12+Sai, team Ebisu, and sand siblings are going to surpass.
Sai: Deidara/Konan (couldn't decide who's stronger)
Karin: Anko, Kushina or Kabuto (not Orochimaru's powers) (she's highly debatable, so any of the three would work)
Kiba: Tsume or Asuma
Shino: Shibi or Kabuto (non orochimaru powers)
Ino: Inoichi, Shizune, or Even Mei (if he intends to make her weaker than Sakura, but not too far behind her)
Shikamaru: Kakashi or Shikaku (depends on how much effort he puts in)
Neji: Hiashi or Kakashi (hoping Kakashi)
Tenten: Zabuza or asuma
Konohamoru: Hiruzen (prime)
Udon: Kabuto (with or without Orochimaru's powers)
Moegi: Shizune (abouts it)
Gaara: Killer B
Kankuro: Sasori (already happened, but I can't think of anyone else)
Temari: Baki or Chiyo