I've been in those shoes and had children scream for a couple of months before settling in and I'm constantly talking to the parents about not picking up the child at their first whimper and helping them learn to self-soothe and be more independent. I've just had experience with an Attachment Parenting family where the Mom still carries her 2.5 yo around on her body and co-sleeps, etc. Never again! Now I ask people about the parenting philosophies in my pre-screening before the interview. Good luck.
Don't you have a fever or vaccination policy? My families must vaccinate on Fridays and keep their children home for 48 hours in case of fever. My fever policy states that at 100 F the parents are getting a call for pickup.