Giants releasing Janoris Jenkins

But wouldn't the released player have a say in where he signs since he's an unrestricted FA? It doesn't make sense that a wink and a nod agreement to circumvent the trade deadline is possible since no one has rights to the released player but the player himself.
Yes the player would have to be in on the deal, they couldn’t be forced against their will. But if you think some players wouldn’t participate in this kind of “cheating” you’re kidding yourself. It would be just like when a player works out a new contract with the team trading for him in order to facilitate the trade.