If this team is as bad as people say it is, Losman will be back in soon enough.
I think the entire organization benefits from winning, as well. I certainly don't think I'd consider Losman "stability" at the QB position, but I get your point.
I think the Bills if lose 2 of the next 5, and we'll see losman again. And at that point we can bench Moulds, Fletcher, Adams, etc. as you suggest.