MA doesn't have a Mandatory Arrest Policy unless there is probably cause that a restraining order has been broken. The officers aren't required to arrest someone just because you called 911.
TN also doesn't have a Mandatory Arrest Policy. It's up to officer discretion.
With DD only wanting one bat, I see no reason to move JBJ. You only move JBJ to get a LF and a 1B/DH. It looks like they only want a 1B/DH guy now since they are still stuck with Hanley. Thanks Ben.
If you have a great defensive catcher, the personal catcher is not needed. Also, if the personal catcher goes down, the other guy has to catch up pretty quick. I'm not sure that's a very good strategy.