Shishido Ryou/Tanishi Kei
Oshitari Yuushi/Kaidou Kaoru
Mountain Training MSers have shown better results.
From Camp training, the only big improvers are Atobe and Akutsu.
Also, Yushi is in 6th Court. And I have a theory that 6th Court is a place that Konomi dumped players that are popular but he doesn't feel like spending time on improving.
I honestly believe Yushi, Hirakoba, Sengoku, Kamio, Ootori and Amane won't be doing any significant improving in SPoT. Can't see Konomi giving them screentime yet.
Fuji and Kikumaru are safe as Seigaku members though. Not sure if Konomi will give big improvements to Yuki or Marui. Doubt it.