From chapter 46, "To Be Forged Again": Silviana said... "I'm going to have to get used to a lot of things changing, I suspect." "I'm afraid so," Egwene said. "Not the least of which will be the need to choose a proper Mistress of Novices, one who can deal with hundreds of new initiates--many of whom are not of the standard age. I've already begun the process of accepting for training any woman, no matter how old, who shows some measure of ability with channeling. I suspect that before long, the White Tower will be bursting at the seems with novices." "I shall consider suggestions for a replacement quickly then, Mother," Silviana said. I think maybe Brandon Sanderson has blundered here in forgetting to mention Tiana, the Mistress of the Novices in Salidar. It seems very strange that Egwene has failed to mention her. She's acting as if she is replacing Silviana, not Tiana. There should be no problem: since Silviana has been promoted, she doesn't need a new Mistress of Novices. Tiana already has experience dealing with older novices during her time as Mistress of Novices with the rebels, although she did have some problems dealing with Sharina. Even if Egwene has decided that Tiana is incompetent, shouldn't she have explicitly mentioned this? From chapter 46, "To Be Forged Again": "Mother," Silviana said quietly as they walked, "I can only assume that you had a Keeper already, among the rebels. Do you intend to maintain two of us?" "No," Egwene said, "My previous Keeper was executed for being of the Black Ajah." Silviana paled. "I see." "We can't dance around these things, Silviana," Egwene said. Since Silviana does not seem to know who the rebel Keeper was, she might not know who the rebel Mistress of Novices was. That's all the more reason for Egwene to have mentioned her. And Sanderson is explicitly mentioning the two women for one position quandary, even though he failed to do the same for the Mistress of Novices position. From chapter 46, "To Be Forged Again": Romanda and Lelaine would undoubtedly be livid when they discovered what Egwene had done in choosing Silviana, but the more she considered it, the more satisfied Egwene was. ... And besides, with an Amyrlin who was one of the rebels--nobody would soon forget that, no matter what Egwene said or did--it would go a long way toward healing relations to have a Keeper who had been a loyalist." Here we have Egwene worrying about the politics behind her decision. And yet, if she were to choose a tower loyalist as Mistress of Novices, she would run the opposite risk, that she could alienate the ones who have long supported her: the rebels. Even simply booting all the rebels from their positions runs a smaller risk. The simplest and easiest way to avoid these problems is to simply import Tiana over to the Tower in the same position. So, it seems to me that Sanderson has either forgotten about Tiana entirely, or else he deliberately decided not to mention her rebel position despite it being illogical to avoid doing so.