So signing with a very new/ junior agent seems like a perfectly fine thing to do if that agent is embedded within a good agency and they are a good fit for your book. Do you think it matters if that particular agency as one (or, um, more than one) other agent/s who are more senior who already rejected your book? I ask because I know junior agents rely on the mentoring and connections of more senior agents as they start getting into the biz. But does this create an awkward or potentially bad situation for the author if other senior agents are familiar with the work and didn't like it?
You have fallen prey to one of the worst (and totally wrong) assumptions in publishing: rejection means the agent didn't like it.
I reject good and publishable work Every Single Day.
Let me say that again this time with feeling: I pass on good and publishable work Every Single Day. Work that goes on to find an agent and get published and win prizes.
Repeat after me: rejection only means no, nothing else.
Thus, a more senior agent might have passed on your work for any number of reasons that have nothing to do with the caliber of the writing, let alone whether s/he liked it.
Some of the reasons I pass on good and publishable work EVERY SINGLE DAY:
1. I have a project that's similar
2. It's not one of my strongest categories
3. I've just signed a new client and I'm hesitant to take on more work just now (that happens a lot)
Some of the reasons I pass on work that other agents might take on:
4. It needs more editorial work than I want to spend time on
Thus, you should now intuit the answer to your question,
But does this create an awkward or potentially bad situation for the author if other senior agents are familiar with the work
but in case your frozen intuition whiskers have not yet melted after all my hot air and arm-waving: