So what flavor of special blacker-than-black ops nanomachines is the tea laced with? Because I know she didn't go to all that trouble to just slip him one of Mr. Mickey Finn's fine beverages.
Rose certainly is. She's quite obviously a devious schemer who will leave nothing to chance. He is greener than the verdant wood, and utterly out of her control. Since extensive cyber-modding would take too long and probably violate some sort of restrictions on her system (not that she'd want it known she could bypass said restriction), putting some nanos in his head with specific data and probably a few subtle (and one or two quite overt) directives will keep him on his mission as well as get what Rose wants done as well. Their interests here are not a total overlap, rather an intersection.
*looks down as A Computer virus deflected from Cyberskull Deletes his pants* HEY!!!!! Watch where you aim those things I LIKED those pants!!! Freaking evil self aware AIs.....
He'll be useful for fixing Aeneas. After that, he'll be Lynn's bedwarmer. Unless Lynn and Acantha *really* warm up to each other in rather unexpected ways.
LOL CentComm. That is EVIL... of course, that is ALL you. :-) I don't think that is ALL Rose wants him for. She could have gotten just about ANYONE for those functions. :-)
That's just my wild-assed guess.