Some months ago I received a full request from Agent A at the Good Literary Agency. A few weeks after that I received a full request from Agent B at the AlsoGood Literary Agency. No problem so far.
ThenAgent B left the AlsoGood Literary Agency and joined the Good Literary Agency. I believe she took her earlier full requests with her, which means two agents at the same agency now have my manuscript. I haven't alerted them to this fact because I don't want to jeopardize my chances with either one of them. Is it my responsibility to bring this up, or should I take a "wait and see" attitude?
First, huzzahs for two requests for full manuscripts. Let's not forget that happy fact as you sort out what to do here.
This kind of thing happens a lot these days. Sometimes agents will email writers with updates on this, sometimes not. What we don't know here is whether B did take those full requests with her. That's NOT a given that she did.
Here's what you do: You email Agent B. You congratulate her on her new position. You mention that Agent A also requested the full and you want her to know to avoid any bumps in the road here at her new job.
You do NOT take a "wait and see" attitude here. Even if it means one of the agents has to drop out of consideration, you will have acted with honesty and integrity and that's going to serve you well in your entire career.