Well, they've tried to be gentlemen and it hasn't worked.
Hard to be the ethical one when the other side isn't.
Time to switch tactics. They need to lay their last best offer on the table and tell them take it or leave it. Show up or don't. Let the public know they've put a great deal on the table and hope that Donald will see fit to want to continue to be a Ram. But the penalties and fines will happen no matter the deal, and they won't spend another minute with it except at a signing ceremony. He's just one of 53 guys and they've exhausted any time they have to deal with it.
You must always enter a negotiation knowing what your last best offer can be before you walk away. Demoff has been through this too long and too successfully not to know what a final acceptable outcome would be for the Rams. And I guarantee you it is not re-signing Donald at all costs. History has been that the Rams aren't horse traders. What little I've been able to glean is that they pretty well put the deal they'll go with on the table up front. Naturally some details and language can be adjusted to get to the signature line.