I can't believe Pittsburgh's starter in 2012 is a Hall of Famer. He got pulled for his backup, an aging Vokoun the following year. The Pens were not serious contenders in 2014 and 2015. Then he was hurt for the 2016 run, they win with Murray, a mere prospect at the time, who was better than the actual backup Jeff Zatkoff. 2017 they share the net all season, every time it looks like Murray's got it, he gets hurt, including right before the playoffs. Fleury regains control of the crease and kills it. Murray becomes available late in the 2nd round, and midway through the ECF, they pull Fleury, fair or not for Murray who got the job done the year before. There's no room for Fleury there anymore, he departs via Expansion Draft, Murray officially succeeds him.
If the story ended there, Fleury would not be HOF. It's what he's done since. Big part of Vegas's immediate success, even though by the time they won a Cup, he was gone. Then he ices it with a Vezina, something he never had come close to doing. He's out of Pittsburgh 8 years now and still very good in his role as Minnesota backup.