Were they just trying different combinations? I was out for most of the 2nd set when they subbed Otsuka out for Takanashi. I hope that wasn't because he was playing inconsistently.
I'd like to think that they are just trying combinations, but who knows with this coach lol. They also subbed out Miyaura for Otake, not as a double sub. They played well in general imo, and though they have errors, they are not bad enough to be benched. I'm pleasantly surprised to see Otsuka as a starter over Takanashi though, considering how little his playing time was in the recent competitions.