It can both soar and dip with every new minute that is drained off the scoreboard. It can be skewered based on one play — both good and bad.
It’s difficult to measure such a thing when dissecting the makeup of a team. For all of the advanced statistics poured into hockey, none provide an accurate barometer on what belief can actually bring to a club. Even those that wring their hands about the clichéd intangibles of the game of hockey — gritty, hard to play against — might find it far too abstract to measure.
Just don’t question the 2019-20 Bruins about the role belief can play in a locker room. Much like any inquiries framed around June 12, 2019 — you’re not likely to get a good answer.