So the prevailing opinion is Bylsma's system sucks and the opposition has figured it out. The opposition apparently figured it out in last year's playoff debacle with the Flyers, then forgot how to defeat it during the regular season this year when we won 36 out of 48 games, and now has remembered again come playoff time.
Maybe its the executon of the system by the players that's the issue and not the system itself. Nah that couldn't be, everyone knows that Bylsma is an idiot and is the root cause of the problem.
You are misinterpreting the point.
EVERY system has strengths and weaknesses.
Think of it like this in a simpler analogy regarding a different sport: boxing. If a boxer decides to take away any shots to the head, he can simply keep his hands up all match. Now, the strength of this strategy is that he will make it nearly impossible to hit his head with a straight on attack. Where is the weakness? The body. If you are busy keeping your hands head high, then you aren't busy keeping your body covered. In this instance, if the opponent decides to take those free body shots you are giving him, this guy's strategy is going to completely fail.
What's a boxer to do? You have to be fluid. This means constantly adjusting strategies, switching them up, doing A now to set up B later. Looking to force your opponent into obvious situations (such as baiting a certain punch) so that you can easily defend it and then counter. It's a constant ebb and flow.
Hockey "systems" have to remain fluid as well. If your opponent starts throwing up a block to what you WANT to do, then he HAS TO BE LEAVING something else open. If he is hugging the NZ boards on the side your puck-carrying D is coming? He has taken away the stretch pass... but he is leaving you plenty of room to skate right up towards the red line center, or pass to your D buddy that could be doing the same.
The job of coaches is to prepare the players for recognizing, in real-time on the ice, what opponents are doing, and which appropriate actions to take against it. This means even if you PREFER Strategy A... if the opponent is stifling it.... you have to go to Strategy B or C. This can and should keep up if a team is sticking fully with blocking Strategy A (as in my boxing metaphor above, if the guy keeps protecting his face) then you keep on hitting the body, IF THAT'S WHAT IT TAKES.
What should make Pens fans concerned, is that the Pens seem to have a lot of arrogance about their style of play. They seem to want to only "get to their game" irregardless of what the other guys are doing out there. That *might* work during the regular season, when coaches aren't going to spend a lot of time breaking down your system and drilling their players on how to break it, or you are going up against sub .500 teams where it doesn't matter if they know what's coming they can't stop it.
In the playoffs, coaches WILL thwart your strategies. Players on the other team ARE good enough (even if they are an 8 seed) to execute/implement and succeed on thwarting your strategies. And a certain HC of the Pens better start taking lessons.