
Originally Posted by
exacta
One thing I do agree with is that SS is screwed. Definitely. But thats the point: they're screwed. Quincy's are dangerous by themselves, and they also have a way to "seal" Bankais. In other words, the captain Bankais won't work against them. So they have two options:
1)Fight without using Bankai because it will get sealed.
2) Use Bankai purposely letting it get sealed, so you can see the method the Quincies use to take away Bankai and from that point on figure out a strategy to get it back.
Both options involve not using Bankai. Again, right now they're screwed. If they use Bankai, it gets sealed. If they don't use Bankai, it doesn't get sealed, but either way, bottom line is, they can only fight in Shikai. If they do use Bankai, they will get to see for themselves exactly how the Quincies counter it, and then figure out how to get it back.
So option 1 rules out using Bankai completely, whereas option 2 sacrifices it so you can figure out how to get it back. They chose option 2 because they all can tell that they NEED Bankai to win. This was probably the most logical decision they could make. There's no time to have Mayuri analyze anything, SS is in serious danger. Anyone below VC level or perhaps even Captain level can do nothing. From the looks of things, the Vandenreich has more captain-level soldiers than SS does. Mayuri if anything should probably be fighting too himself.
The four captains also aren't in communication with each other, and aren't near each other. They can't afford to be, the Vandenreich is attacking from at least 16 different locations. All 4 captains plan on losing and getting back their Bankai in the same battle. There would be no time to go to Mayuri and tell him what the saw, their opponent would not allow that. This is the best they can do, and is the kind of strategy that is good enough for a desperate heat of the moment situation like this.
The reason why Renji was the best choice, is because Renji's shikai isn't very effective against the enemy. Byakuya's IS, which he demonstrated this chapter. As other people have already said, a VC with a Bankai and a Captain with a Shikai are more effective than a VC with a Shikai and a Captain with a Bankai.
You see, their trump card in this situation is not Bankai, at least not until they can counter the technology. Right now, the advantage they're utilizing is numbers. So far that's all they've really got against their opponents.