I'm not sure I understand what this SW is trying to say - you had him removed because he is a danger to you in your home, now he's a problem where he is so THEREFORE IT'S NOT WORKING AND HE HAS TO COME HOME? What kind of logic is that?
Surely she can see that if he is not cooperating out of the home, then he is not going to magically improve back in the situation he had to be removed from?
Here's hoping the replacement comes along soon.
An evil thought - can you suggest she takes him into HER home, as an interim measure? If he really is such an easy child then she should have no problem, surely? And if she responds to the suggestion with, "I need to be safe," then jump up on your chair and shout, "BINGO!"
It reminds me of telemarketers who ring your home number, generally at inconvenient times while you are getting the evening meal for example, to sell you something you don't want and don't need. You can't hang up on them or they ring right back. I've taken to asking for their home number so I can call them back when it's convenient for me. Of course, their answer is, "I can't give you that, because you might ring me when it's not convenient, I have to do this at work."
And the response is, "Well you ring me when it's not convenient for me - this is MY home number you rang, so why can't I ring yours? Why are you imposing a double standard here? You're wanting something from me that is inappropriate by your own standards."
If she succeeds in getting him placed back with you, then it will be "case closed" successfully from her point of view and nothing more will be done. difficult child will get the message that he can act up and you can't change anything because no authorities will support you (hence he can do what he likes, it's officially sanctioned).
Fight this one. Definitely.
Marg