If you are young, attachment can be said to be a rare exercise opportunity. If you are not as middle-aged, attachment means little, and you don't have a stable job in the old familiar unit, it is very troublesome to go to the new unit to deal with things.

The problem is now in xxxx (as you know). If some problems can be controlled in the original unit, you can't manage the affairs of the original unit if you are affiliated with the new unit. If something happens to the original unit, it's hard to say.