You might not like it but I'm pretty sure you realize the history of the team. The things their GM's do--the things they don't do---the expectations of their owner(s). I don't see Gorton bucking Dolan and lasting very long in his job. All it takes is one colossal failure in a GM's career to pretty much destroy it and especially if it's your first job. Dolan's going to want a competitive team--Gorton's going to do whatever he can to accomplish that. This team isn't going to tank.
Can we please stop speaking for Dolan? None of us have any idea what his level of involvement is, nor do we know whether or not he would be opposed to a rebuild.
https://en.wikipedia.org/wiki/James_L._Dolan
In 1994, Paramount Communications, the owner of Madison Square Garden, was acquired by Viacom, who in turn sold the MSG properties to Cablevision and ITT Corporation, which had 50% ownership each. ITT sold its share to Cablevision three years later.
In 1999, Dolan was given an increased role in managing Cablevision's sports properties and is now the primary manager of these assets. The teams under his domain include most notably the National Basketball Association's New York Knicks, the National Hockey League's New York Rangers, the Women's National Basketball Association's New York Liberty, and the American Hockey League's Hartford Wolf Pack.
So it wasn't until 1994 that Dolan got involved, wasn't until 1997 that Cablevision owned 100% of the Rangers and wasn't until 1999 that Dolan got the power he has now. He fired Neil Smith the following year after Smith spent 3 years doing exactly what you think he wants Gorton to do and Smith hasn't found another GM job since, outside of the 5 minutes he spent as the isle's GM.
The only rebuild in team history, by your own admission, occurred during Dolan's tenure, and according to reports, he recognizes that this team needs an infusion of youth:
http://nypost.com/2016/04/24/a-rangers-overhaul-will-require-a-changed-alain-vigneault/
Sources have told The Post there is belief from the top down — starting with CEO Jim Dolan — the club is in need of an overhaul in the form of a transfusion of new and younger blood pumped into the system. Still, though, even as the clock ticked on the core, more was expected of it.
We have few draft picks or prospects. As you said, it will be difficult to trade anyone with an NMC, and we aren't going to get much for Girardi or Staal if we do manage to trade them. So how are we getting those young players? Nash can be traded, but what are we getting back for him? Is that enough?
I'm not saying we should or shouldn't trade Brassard or Zucc, but we should absolutely consider it depending on the return, and we'll likely be better off trading them both at some point before their contracts expire.
You've also said that you expect this team to take a step back and it will take some time for the young players to mature. How long? Will Brassard and Zucc still be playing at the same level by then? Will they still be worth their contracts? If we don't expect to win the cup the next 2 years (and I don't), then we have to consider what we need to win 3, 4 and 5 years from now.
Brass and Zucc both have 3 years left on their contracts. Do you anticipate re-signing both of them at age 31? If not, then they have to be traded before they get to UFA and we can't wait until the trade deadline. They need to be moves we make in the summer, whether it's this summer, next summer or the summer after.