Same here.. but the more I think about it, there isn't really much to show about the shinobi people from that class.. Kakashi and Guy is the perfect duo to represent that class. The guy above said it, Asuma got trolled and Kurenai is limited by her pregnancy.
I can find Anko's story (Her time under Orochimaru) interesting.. but honestly, the rest don't have much story to elaborate on..
Ibiki? A little of his tortured past, perhaps.. Almost nothing.
Ebisu? I cant think of anything to extend his story except as Konohamaru's sensei.
Iruka? Maybe shed some light on the ending of his ninja career.. Not much..
Shizune? Her time training under Tsunade and her relationship w Uncle Dan.. Still not much..
Raido/Genma? A little, since they trained w/ Minato.. Still not much..
We just got a filler on Edo Hayate Gekko & Yugao so we r good w/ that.
Aoba, we got plenty of him in the Sea Adventures Arc, so that's good enough to me..