Mark Giordano. On ice + culture is an embodiment of his journey to the NHL as well as the lessons he has learned from a class act like Iginla.
Brad Treliving.
This guys has done so much to overhaul the organization as a rookie GM (with so little recognition) it's ridiculous. He improved the farm system vastly to improve development, culture, fit and practicality. No longer is the farm in the East (Adirondack) or plays in the East but located in the West (Abbotsford) and essentially un-accessible due to distance and time zones, the farm team has been revised to have less barriers of NHL graduation (plays same style as big club now and development prioritized over wins, which wasn't always the case), improved support for the kids (mental health, addiction, culture etc.) but revising the training camp format and the resources in Stockton and so on, so forth.
This guy successfully has bought out a few players which has not been allowed by ownership for who knows how long. He still can't salary retain, but at least he has gotten rid of this restriction which has been around for decades. He has drastically reduced the amount of ownership meddling that used to occur by demanding it as part of his extension discussions.
Rightly or wrongly in his methodology, he took a roster and farm system starved of talent from 2015 that looks comparable to the 2019 Ottawa Senators and has improved to drastically without tanking. Love him or hate him, that's pretty solid. Keep in mind, at that time, Baertschi/Klimchuk/Poirier not Gaudreau was supposed to be the future of our prospect cupboard and Monahan was a sophomore 3C behind Stajan and Backlund (the injury prone version).
I mean, it's not like many of us don't get frustrated with him. But damn is this guy unwavering in his pursuit of his vision. That's really damn respectable even if you don't fully agree with his "process".