everyone: "Konoha has too many teams everything is unbalanced!"
*cue complaining*
also everyone: "Let's add one more Konoha team!"
You bring up a great point though. Things are already unbalanced as it is. Adding another team might actually be too much.
We should probably get a better understanding on where and what Shizi has been doing before we make any decisions.
My idea is that after Shizi lost the scroll to Azumi, he could’ve done two different things. One, he just leaves the village again.
@MegaloX I’m assuming you had an idea on how Shizi was handling himself for the past few years. Either way, Shizi seems to have been doing well for a missing nin of his age. I guess once he sees the bounty on the jinchuriki, he decides to go after it as well. A subplot being he also wants to get back to the Leaf.
The second option is that after the invasion, Shizi decides to go back to the Sarutobi and lay low with them for a few months until Konoha has cooled down from the war. Unlike Kiro, Shizi would probably be placed on probation or something. Probably Kyuu’s Sarutobi or just a Sarutobi in general vouched for him. From there we could easily say that’s why we haven’t seen him around.
For the backup squad, Kyuu’s Sarutobi could’ve recommended Shizi, citing this as a way to redeem himself. That or Tsunade herself was generous enough to give Shizi a second chance. Ofc, if we went by this, they would’ve been on their way by now and I could just Tsunade mention the backup team she sent off.
Either way, this still keeps Shizi’s backstory of resentment towards the Leaf going and allows him to flow seamlessly back into the story.