Mayb e Blues' fans can affirm or negate this:
Yeo, in Minnesota, left the impression that he prefers a very disciplined, structured, defense-first-so-not-give-up-good-chances-and-our-time-will-come philosophy. But, what happened here was that it takes tremendous mental fortitude to play that way for months and months and months. NHL forwards are more accustomed to reacting with instinct toward offensive openings, but the word seemed to be that Yeo tried to instill a greater measure of caution.
And, then, at some point, the players' minds wear down, and they can't concentrate that like for a full year. But, it goes really sour because you have also broken the offensive-reaction response, so offense doesn't come naturally any more, either.
Not able to watch the Blues, but does this seem to describe what's happening?
As a side line--goalie equipment rules and slashing penalty calls have raised average scoring league wide this year. On average, that makes it more difficult to play defense-for-60-minutes, because the rules themselves open up more scoring, making a strict system more of a risk.
Anyone?