If it wasn't already obvious, it became clear this week with the Jets and edge rusher Haason Reddick: Don't trade for a player who wants a new contract without working out a new contract in advance.
Amazingly, the Falcons sent a third-round pick to the Patriots for edge rusher Matthew Judon without working out a new contract. So, what happens next?
The trade, we're told, still hinges on Judon passing a physical. He could refuse to show up for it without a new deal. That would cause his rights to revert to the Patriots.