This question is closed for "unclear what you're asking". I read and edited the question and didn't see any missing clarity, understood it perfectly and what was being asked, and I answered it without a problem (I think a decent answer).
While my answer directly addresses some specifics in that particular workplace and specific workplace problems, it is about general advice on how to approach a specific scenario. That could easily be returned in search results for various relevant scenarios, and very well help others who have a fragmented team and staff without clear task allocation.
I just can't see why it's "unclear" - is this one viable to be reopened? (I cannot flag to reopen.)
Maybe there's a reason I don't know about from being new here :)