right now the most questionable players are Airi, Inoue and Yamagishi. Since Yamagishi is the only other libero with sufficient experience she will most likely stay. But without any changes in offense, it will be the same result or even worse come WCH. They could not get out of the week 3 rut. They lost to Belgium for the first time. If Manabe doesn't intend to utilize Miyashita he should just call Momii, she already works well with Mayu. Mayu can continue to be the other scorer if the rest are not ready to replace Inoue.
Manabe could revise Nakada's old formation with Mayu Koga Hayashi. Airi can be the slow and sluggish faux European player on the left