Lancir listens and nods and occasionally looks like he really wants to say something, and when he's done he starts to open his mouth and then doesn't, and instead looks past her shoulder.
(He's busy considering a number of things he could say and deciding not to because, by now, he's caught on that they definitely won't lead to the sort of productive conversation he wants and will, instead, lead to being shouted at or, maybe worse, silently judged.
He could say that the Companions are a backchannel source of information anyway – except that, one, Yfandes is weirdly cagey on the matter of Vanyel, and two, Yfandes doesn't necessarily have perfect or unbiased judgement on the matter, so it's not something to be counted on. Also he doesn't actually want to get Bella mad at Yfandes for the times she has answered Taver's queries about her Chosen. He could say that what he actually wants is to be able to sit down with Vanyel and have a normal conversation, between two adults, about whether he's up for a mission right now, and he would much prefer this to the pulling-teeth privacy-invading conversations they have in practice, and if she could help Vanyel solve this problem then he would be eternally grateful. He's also pretty sure that Bella won't respond well to that. Or to pretty much anything he could possibly say about Vanyel, because by definition it's coming from him, the Herald in a position of authority, and not her patient.)
"That's an interesting perspective," he says finally. "I do see your point, I think – I'm just not sure how to balance it against my duties to the Kingdom." He smiles slightly. "You've simplified that for yourself, I guess. You don't have any responsibility to a kingdom. And I see how that does make you better placed to do what you do, when you don't have competing pressures. So...all right. If I need to judge whether to send Vanyel on a mission, I'll talk to him myself – er, without using my Sight or anything, unless I ask and he agrees. If you don't feel comfortable asking him about the randomization thing after the fact, I won't press. I'll consider passing on other Heralds to you, but only if they do agree to the randomization policy you come up with. Thoughts?"