Alshon Jeffery or Martellus Bennett? *PURE SPECULATION*

I've been hearing a lot of things about the Saints potentially targeting either Alshon Jeffery or Bennett on the trade block. While Jeffery would be great and an immediate impact in the passing game, I think we only get to hold onto him for one year because he'll want a monster contract as a free agent next year. Bennett on the other hand, while old, could really help out at a position of need for a few years down the line and won't demand crazy money. Out of the two I think Bennett would be the smarter move. What do you all think?
You have been hearing that from a source or you have been reading it on the Internet?