The Kings notoriously can't create offense and rely heavily on size, physicality, and not-necessarily legal play to wear down the opposing team. The Pens don't have the personnel as a team to do that.
That's why I've been complaining about the bulkiness of our wings since the Kings won their first championship on the basis of permitted obstruction in the offensive zone. The only counter-tactics are to hope the league cracks down, hope the Kings are unlucky, hope Quick sucks or join the arms race LA started. Only one of these tactics constitutes an plannable strategy.
Hawks use speed, but they lose more than they win against LA when the games count. And we don't have the footspeed on the sides of the ice to try that anyway. If Perron, Bennett and Adams were Kreider, Grabner and Hagelin, maybe we could try, but they aren't.
The Pens also have to play better goalies in the playoffs as compared to the Kings.
The randomness of Johnston's scheme also nullifies the strength of Crosby and Malkin as playmakers and being able to impact on-ice shooting percentage.
Strength of goaltenders really shouldn't matter when you're relying on randomness that close to the net.
But yeah. The Kings are notoriously low scoring. They get their 1.8 (or whatever) per playoff game no matter how loosely--or strictly--you defend them.
It's a tradeoff. Playing the same way as now, they don't get shut out 3 of 4 against the 2013 Bruins because eventually something hits something and Rask doesn't have time to react. This isn't necessarily to say they beat them. It's just not the unwinnable exercise in futility that stretch-passing into outnumbered situations and trying to beat a white hot goaltender from range was.
I do think Malkin's a decent fit for what we're doing. There are these pockets of dead ice that he can--and does--drive through in the offensive zone. Geno's got an awful lot of ugly goals this year.
Does it do any favors for Crosby? Probably not. But is anything going to do any favors for a 5'10 guy in a Dead Puck Era, when guys are allowed to hook him, hang on him and check him away from the puck?
It is also painfully obvious that the Pens don't have a plan b when randomness will fail. If the Pens can't get shots through or rebounds then they have no offense.
Oh there's a plan B all right. It's the powerplay. It's just dysfunctional.
Edit: I think Johnston has a decent to strong grasp of coaching tactics. I can't really say with any certainty that anything else he could be doing would map better to what he has, specifically a core of wings that is weak as a group, nonphysical as a group and immobile as a group. He's a bit by the book, in that he just does what's popular instead of innovating (we started the year with the most popular D zone scheme and ended it with the second-most popular D zone scheme--and given that I'm seeing more than just Babcock overloading, the second-most popular might be first now), but he's got a firm understanding of the book.
If we want to definitely improve on him as a tactician, the list of potential replacement coaches is going to be short. Deboer, Babcock, Tippett and that might be it. If Hitchcock, for example, is different than Johnston, I'm not real sure how. Maybe he wants guys finishing checks more. Not much of a difference.