I'm not saying Montreal can develop players better now with a new front office, I'm saying they'll need to be, since there is no alternative.
I want Montreal win a cup in my lifetime. I don't care if they're ass for a decade, I want to witness them winning a cup. It is basically impossible to that without elite players and the vast majority of elite players are obtained through the draft. Montreal simply doesn't have the cap space to acquire them elsewhere either.
We also don't know what Suzuki and Caufield will be. Like many other Habs prospects, they stagnated this year. Hopefully the jump under MSL isn't an abberation. Romanov has stagnated. We don't know if Wright will even be 1st line/1b center. Or if they pick someone else, they'll hit either. They have no D prospects that project as a #1 D and Guhle is probably the only one that may be a #2 D. So the fix is taking Montreal's non existant cap space and using it on a winger that had a career year, throwing in a top prospect and pick that is likely going to be top 10 or better.
Arguing that the only proven sustainable way to build a contender is in fact not sustainable makes no god damn sense. You just don't want to risk a chance at being the 15/16th best team in the NHL.
I also don't know what you're talking about "this god awful development regime we’ve had for the last 30 years", Montreal was one of the best draft and develop teams in the NHL for most of the Gainey era. They just never had the premium picks or excess picks except for 2007, which is arguably the best draft classes of any team in the cap era.