They're out of money, and now husband has to leave the lab, on very short notice. ...
What makes me upset is that my husband is really happy scientifically in this lab. My new school has a large program in his field, but no one that overlaps significantly with his interests.
Oh navelgazer, I know just how your husband feels. I had to leave a lab on short notice due to lack of $, and was forced to drop a project that was consuming me scientifically. It was really challenging, exciting and fun. But due to lack of $, I had to leave. It felt like my baby was taken away. Ripped away. The world was unplugged. I had a great publication from this work and a lot of great ideas for future progress. And I couldn't continue.
It totally sucks.
So I joined another lab for two years. Then I became a VAP. But all the while I kept my old project simmering while I was doing unrelated work. During this time I found a fantastic collaborator. We wrote grants together, one is being reviewed right now.
Point is, can your husband (while in new postdoc in less exciting project) keep things going on his old project? Even just in the background? Either with members of the old lab or with outside collaborators? Then he can keep his baby alive! He can hopefully develop something independently related to the old project that he can take to the job market at New U. It might all work out. But in my case, it most certainly tested my patience.
There's so many good new things in your family! That should help him, and
time definitely will help. Wait it out as cajun says. Meanwhile good luck with the new job and the new baby!!