Grier is not trading Parker for a 3rd or a 5th it would mean he was wrong using pick 14 on Parker in 2015, he is still hoping - and he is giving him 5 mil a year for 2 more years to prove he was right. Don't know what you would have to give him to get Parke, possibly quite a bit. Ego it's a funny thing ... GM's and there reputations.
Demarius Thomas is 31 and Golden Tate is 30 both had great careers but there 2 to 4 from coming to an end, have to wonder how much playing time each gets moving forward, how well they have taken care of themselves and their injury history all that crap. Thomas and Tate at the end of their prime.
Kenny stills is 27 a capable starter in this league for 3-4 more years and is still able to take the top off a defense, while he may not have been as good as Thomas or Tate he is more valuable right now. He is in his prime!!!
Brice Butler who the Dolphins picked up as a FA and have nothing invested in, looks like the odd man out - meaning he will have to show even more if he wants to stick, and unless a team is really desperate there not going to give you anything for him, they will just wait until you release him.