Here's the breakdown:
Chicago series - Blackhawks outscore Bruins 17-15, including 1 CHI ENG. Series includes 3 OT games, where Bruins went 1-2. Excluding their 5 goal Game 4, the Bruins averaged 2 goals per game in the other 5 games. Bruins go 1-3 in 1-goal games. Bruins went 1-2 at Home and Away.
St. Louis series - Bruins outscore Blues 22-18, including 3 BOS ENG & 1 STL ENG. (Not so fun fact, when I checked last summer, I found only 1 other case in the last 50+ years where a team outscored their opponent in the Stanley Final and didn't win.) Series had just 1 OT game, which the Bruins lost. Bruins went 0-2 in 1-goal games. Bruins went 1-3 at Home and 2-1 Away.
I think the crushing blow in both series was their inability to win those 1-goal games. They went 1-5 between them, which includes going 1-3 in OT (2-6 if you include the two games that included ENG where it would have been a 1-goal game without them). They basically went 3-1 in games where neither team had a chance to tie at the end (i.e. down by more than 1 goal). That's why I have trouble blaming Rask because all you want from your goalie is to give you a chance to win, and he did that. I mean, in the last 4 games in both series, they scored 2 goals or fewer in 6 of the 8 games. How the hell are you supposed to win like that?
Spot on. There’s pressure and then there’s absolute clutch, do-or-die pressure that occurs only in the most pivotal moments. This Bruins group has for the most part thrived under general playoff pressure and have been a very capable postseason team. But their record in the toughest, series and Cup-defining moments has been pretty poor. G7 in 2011 and the miracle comeback against the Leafs in 2013 are obvious exceptions, but more often than not in the last decade the Bruins unfortunately let opportunities slip and couldn’t put opponents away in tight contests or crucial periods. That’s the difference between them having 1 Cup and 2 or 3, which this core has definitely been capable of.
In this regard Rask has been similar to the rest of the team. He’s an excellent playoff goalie, but his record in Game 7s and knockout games is just ok. He’s carried the team plenty of times, but he’s also had a couple of bad moments of his own, and while he bares almost no blame for this group’s shortcomings, he probably hasn’t really risen above them either - great under regular pressure, not quite so much when your back’s right to the wall and there may be no tomorrow. You can probably sum it up in the context of this era by saying that I’d want Rask as my starting goalie every day of the week through the grind of a day in, day out postseason. But if it’s a G7 or any other elimination game then you go with prime Tim Thomas all the way.