GMs are pretty autonomous. That's why owners flip out and fire them when they check in once a year and notice they haven't made the playoffs in a while. You have the odd figurehead like Alvin or Hughes. If you think Murray Edwards has one f***ing clue about managing a hockey roster, and was meddling with Tre, you're just gobbling fan/media hysteria, in which the Flames narrative was steeped, at the end of the Tre/Sutter era.
That's why the Flyers, a franchise also notoriously, allegedly, against rebuilding, originally let Ron Hextall start out on his 7 year rebuild plan, let him do whatever he wanted, tore the whole thing down. He kept ownership in the dark, never explained anything, and after 4.5 years of mediocrity, they were like, "what are you actually doing here? We're a bit concerned, so reassure us" and he said, "No. You'll see in year 7 when it all comes to fruition." So they fired him. They gave him the autonomy, and he never communicated his plan.
Brad Treliving is hard-wired to never rebuild. He told ownership he'd win the cup. That's why he traded a first round pick for Travis Hamonic. It has nothing to do with Murray Edwards.
He's in Toronto now, a team that was fine with rebuilding. Shanahan was fine with rebuilding. They did a massive tear down. Treliving is not going to do that.
These billionaire owners don't know anything. Has anybody seen the behind the scenes video of Kevyn Adams signing Taylor Hall? Terry Pegula is absolutely clueless. Adams says he wants to sign Taylor Hall, and the price is going to be 8 mill. Pegula says, okay, "if we sign this guy, we're trying to win the stanley cup, right?" And Adams is like...."yeeeeaah, sure thing, Mr Pegula. That's what we're doing." Pegula would have gone along either way. Sure these GMs have to get permission for big moves, but all they have to do is sell it to a billionaire who doesn't really know anything.
Owners are fine with rebuilds. They're not fine with rebuilds that don't work.
When John Bean said he's not allowed to use the word rebuild, it was because of the media hysteria around that term, the meaning of which had been totally warped. If a gm could sell ownership on a plan to get younger, because that's a path to remain competitive, an owner would go along with it.