They would have to cut players to do it.
Their cap would be tied up in order to trade for a pick
They could therefore lose their own free agents such as solder and Lewis.
No team is going to give a 1 for a win on the tag unless he agrees to a long term deal. This means jimmy controls the trade.
If jimmy Doesn’t sign the tag, the cap is still frozen and ultimately we would have to release him.
If you are jimmy and you know all of this why in the world would you hurt your own future by coooerating? If you don’t cooperate you can force a release so you can pick your own team. If you do that your own team doesn’t lose the pick they would fave traded.
Unless the patriots were like the Jete and had 100 mill in cap room, because they have no players worthy of taking up cap space, tag and trade would never have been a realistic option.
It was sf 2 and hoyer or a possible comp pick in 2019 (which they wouldn’t get if they sign any top fa)