Seek AC-21
My attorney told me that you can switch jobs if your case has been unadjudicated for more than 180 days and as long as the core job responsibilities remain the same even though the title changes. You do not really have to inform INS about the change not until they ask you for an employment verification letter or something.
And if you guys have absolutely clean cases and do not expect an RFE/interview, in my humble opinion, go for these new opportunities. And BTW, there is this other person (skh ??) who switched jobs one month after filing AOS, got an RFE and was approved.
It\'s a calculated risk but worth it.
Good luck.