LaFontaine failed because he wasn’t good at his job and lost a power struggle with Murray.
Patty ran the GM search and hired Murray. Who immediately started butting heads with Patty over the direction of the rebuild. The most public part of that was the fight over what to do with Ryan Miller. Patty wanted to extend him, Murray wanted to trade him.Murray was all in on a scorched earth tear down. He wanted to tank for two years to get into position to hopefully draft McDavid. Patty didn’t want to take the scorched earth approach. Seems like he wanted to keep a few key vets around, starting with Miller.
It’s still kind of amazing to me that Patty didn’t know Murray’s vision after interviewing him for the GM job. Did the path of the rebuild not come up? How could it not? If it did, then did Murray lie about his plans? What a mess.
Then Pegula re-enters the picture because he has to pick which vision to go with. Murray wins the argument and Patty leaves shortly after. All of it is still ultimately Pegula’s fault. The chain of events starts with him impulsively hiring Patty in the first place.