You can probably say something negative about almost every Bruin in this series thus far. But reality is this is a team sport and as a group they have failed in this series for two reasons...
1) They cannot stay of the the penalty box. It plays right into the Florida Panthers hands the way they want to play. It's like a giant snowball effect. All that defending just wears you into the ground and by the 3rd period, they are getting run over both on the PP and 5 on 5. Even if you subtract the bad calls, they still have taken way more penalties than they should have against a team that plays like this. When your defenders (including Forwards) are heavily fatigued, you get the bad clears, bad break-outs, choppy exits, sloppy chips, turnovers, etc. The Panthers feed off that.
2) They simply do not have enough speed up front and finish from the entire group. They aren't fast enough as a group to push the Panthers D back consistently. They are holding their blueline very well since Game 2. Leafs D did the same thing in Game 5 and 6. When they dump the puck in but Panther's D get to it first nearly every time and have enough time to break the puck back out quickly. I don't care how big you are if the player and puck are already gone by the time you get there, it doesn't matter. See Maroon, Pat.
They've had chances but they don't have enough skill/shooting ability/finish. Most here knew it was a concern going into the season and into the playoffs, and it's rang true. They have only scored more than 2 goals in 4 of their 11 games thus far. Game 2 and 4 they had some great looks and could not capitalize. Wide open nets, pucks shanked wide or high. On the Bruins, Charlie Coyle stands out as one of the stronger shooters on the team. But watching others teams in this years playoffs his shooting wouldn't standout if he played elsewhere.
If you aren't built to get a lot of shots you better score on the ones you do get. Score one of those great looks in the 1st period of Game 2, and don't allow a goal with 0.3 seconds to go in the 2nd, and it's a different 3rd period and completely different game.
All that lack of speed and finish has given Bobrovsky a virtual vacation back there at times. Wearing down a 35-year old Bob was key to winning this series. Even if you go into Game 5 tied 2-2, if they had worked him over in the first 4 games with lots of zone time and more shots, it should pay off in the later games vs. our 25-year old goalie + Vezina winner back-up. Instead he's going into Game 5 fairly well rested having not had a heavy workload in the past 3 games.
The goal this summer ultimately has to be to improve this forward group so that it scores more goals. End of story. How they go about that is open for debate. Bottom line for me is they need a forward in his prime who slots in between Pasta and Marchand as this team's 2nd best forward. At minimum.
15 forwards have appeared in the playoffs thus far only 5 have more than 1 goal and between those 10 players with 1 or none, they have scored just 5 goals. Most say that in the playoffs, the top two lines/top 6 F cancel each other out and it's the bottom 6 F and the D contributing to the offense that ends up being the difference between winning and losing a series. If that is true, it's pretty clear where the problem lies. This isn't 1999 anymore. You aren't winning a cup by winning twelve 2-1 or 1-0 games with a couple high scoring games sprinkled in between. You need goal-scoring ability beyond just one player.