Factors to make it happen. The Patriots were willing to give up a third-round pick last year in signing restricted free agent
Emmanuel Sanders to a one-year offer sheet, so the price of a third-round pick wouldn't likely be a big hurdle to clear in this hypothetical situation. It's more Jackson's salary. If the Eagles truly were inclined to deal Jackson, and the Patriots truly were ready to act on it, I think the trade compensation would be the easy part, and wouldn't be surprised if the Eagles would have interest in
Danny Amendola as well if it ever reached the serious stage. Renegotiating Jackson's contract, and slicing it significantly, would be the more significant issue. That puts the scenario more into "longshot" territory from this viewpoint.