Okay, just giving a different perspective; it may be as biased, wrong and flawed as any but as such it challenges the consensual notion prevailing here that the coach Yeo is to be blamed of all of "this" (whatever it is) and should be sacked and probably drowned in concrete shoes to Mississippi.
What do you get by firing him but another coach with his competencies, fixations, shortcomings and blind-spots -- and a short-term feeling of satisfaction and schadenfreude. Why would this Laviolette guy be an answer to your prayers??
I'm telling you it won't change ****. And GM Fletcher knows this by his long experience in the sports. That it's a crap shoot, gamble, only a trick, sleight of hand -- sometimes it works like magic, but more often not. Yet it won't work like a machine or a blueprint. There are so many factors, unknown parameters, hidden variables - it's no science nor engineering. It's essentially a hoax, a swindle, a charade; it's only a con, a form of a deception - a setup or theater. And when the curtain rises - you shut your eyes and hope the best.
Furthermore, hockey is not a game of chess. It's tactical reservoir is pretty limited, even more so in the small NA rink which makes the game predictable and rather one-dimensional, physical, hectic, fast. -- Thus, there's no such hockey mind nor genius who would conjure up some revolutionary new concept of playing by studying the game and its strategical options. These options are few, let me say, few indeed.
--So, what would a new coach bring to change this presumed "mess"? A new way of entering the o-zone? A different kind of possession game? A different defensive system? -- What? Tell me. -- Whatever he - whoever - brought or changed it would amount to nothing. Nothing if everything else remained the same. Namely, if the team didn't start winning; I mean started winning moreand losing less. And that's the trick you cannot learn from the books. It's the dark side of coaching: how to make a team win. There you can see a con artist mastering his profession; there you can see a trickery applauded by the audience as expertise, competence and mastery.