http://www.espn.com/nhl/story/_/id/26760836/the-big-winners-2019-nhl-playoffs-far
Goaltender workload management
'It's no accident that this has been somewhat of a recurring theme for teams that have enjoyed playoff success of late. This postseason has been an extension of that, because it felt like we saw more 1A-1B tandems than ever before, and considering the largely positive results, it stands to reason that we'll only see more of it moving forward. Just look at how the teams that won at least one playoff round distributed their goalie starts throughout the regular season:'
TEAM STARTER BACKUP
Sharks 62 20
Blue Jackets61 21
Bruins 45 37
Stars 45 37
Islanders 43 39
Hurricanes 40 33
Avalanche 33 49
Blues 30 45