Livestream with remote actor?

Had to do a crash course in CA to get a live character to show up in Teams. Got everything wired up and, using NDI, can feed my scene to Teams and control the puppet. Bosses loved it. All good. Now, though, I need a remote person to drive the puppet.

I've done a fair bit of reading and experimenting but haven't gotten it to work. My reading makes it seem possible. I need "Bob" to call in on Teams, then feed his video and audio to Character Animator to control the puppet, then feed that back to Teams to talk to other people on the call as the puppet. Do I have to have him call in on Zoom vs. trying to round-trip? Although then he wouldn't be able to hear them, I'd guess. I had my IT department download NDI and OBS (which was a minor miracle) so I'm hoping that's all that's needed.

Anyone have any advice on making this work? I know next-to-nothing about NDI, even less about OBS, so it's possible I'm just overlooking something obvious.