You’ve probably been asked this before, but: what if Jake hadn’t sent Rachel off on her suicide mission to kill Tom all by herself? I mean, he could easily have sent a few Auxiliaries with her instead of using all of them as a ‘distraction’. Don’t get me wrong, I know Rachel was the only one who could carry out this mission (and I also know that KAA wrote it that way to make the horrors of war and the pain of loss clear to young readers), but there is always the chance she could just as easily have been shot by a dracon beam before she could kill Tom. Therefore, it seems plausible to me personally to send her reinforcements, so that she is more likely to complete the mission.
You're right — this seems like the clearest solution that Jake doesn't hit on. Jake notes in #53 that he needs all four of the other original Animorphs in other roles: Tobias for his ability to semi-control a taxxon morph, Cassie for her fast morphing and understanding of what Tom's yeerk will do next, Ax for his ability to communicate with the Andalite Electorate, and Marco to adapt their plans on the fly.
However, by that point Jake has ~25 other Animorphs he could send! He only really needs James and 4-5 others on the ground with General Doubleday. Rachel mentions liking both Elena and Collette at different points, so either of them seems like a good choice for backup, but it could be any Auximorphs. It'd probably be a suicide mission, but so is joining James on the ground.
Heck, if they could get Elena or whoever a whale morph in <12 hours, then that opens up a whole new strategy: Elena and Rachel ride Tom to the Blade ship, Elena morphs so big that she takes down several controllers and the ship itself, Rachel morphs something smaller but deadly and mops up. I guess Rachel could morph sperm whale while Elena mops up, but I don't know that an Auximorph has the experience necessary to hold her own against 20+ morphers for long enough to kill Tom the way that Rachel does in canon. This likely still ends with Rachel, Tom, and most Auximorphs dead. But it would at least prevent the Blade ship from getting away even after Erek sabotages Jake.











