Especially considering the plan if your Nashville is to win now, then in the last 2-3 years of this deal be grooming your next Roman Josi while he is still there.
This deal MAY end up being an albatross there are no guarantees, but if it is it will be one for a year or 2 at most, I'm leaning towards not likely as Josi is a very smart and underrated player around here.