It`s risky for Gorton to move either Mats Zuccarello or Kevin Shattenkirk, because they are the only veterans who are close or about 30 years old in New York Rangers at the moment, except Henrik & M. Staal, but he might be bought out due to a long list of injuries, and Henrik is a goalie. So I`m not sure or certain if they (Sather & Gorton) consider that option, because you see all teams around the league have players around 30 years old, and it`s a very good reason for that in this league. And especially after they moved both Miller & Ryan Mc. and it`s not certain that Spooner or Vlad will be here after the summer - so Gorton obviously considered to flip those new assets for future picks, or maybe Gorton aiming for the top #3 picks in the 2018 draft to build around hence why he consider to flip new assets for better draft positions.
It`s my reasoning and speculation based on Gorton`s interviews recently, and how long his rebuild plan is - and it was mentioned a (1-3) years rebuild plan.
A rebuild is not necessary move all players around 30 years old or older for prospects, and since I`m a New York Rangers fan, I admit Zucc is the reason for that many years ago - so for me it`s hard to see such a player go to another franchise.