Not sure what other defensive system you wish to have in place when you have a D who are far from fleet of foot. Most teams when playing the B`s have two options
a) use their speed to skate around the D or
b) dump and chase in which case they(opposition) will win more foot races than they lose.
I can`t stand the D-to D passing, but I see why it`s in place, because half this lineup needs a running start to get any speed going and they need the time to do it and that`s what the passing between the D does, gives them time
When you have a team where the majority of players can`t play an up tempo game due to the fact that they can`t keep up that pace, it`s incredibly limiting in what style of game you can play
We finally caught a glimpse of what speed can do with the additions of Spooner and Pasta late in the season, and when you have a D who can push the puck up ice to a forward(s) who have the ability to force a D to back in, that`s half the battle won, unfortunately, this team, IMO, has Marchand/Pasta and Spooner as the only guys who can motor, some aren`t slow but also not the kind of players that force a D to play hesitant and back
In the abstract, I'm not opposed to a D to D pass. It's sometimes the best option. The issue as I see it is the lack of motion, both from the D-men and the forwards.
Evidently Chia's No Movement Clauses pertain to on-ice as well as off.
When the Bruins gain control of the puck in their own end, all 5 guys seem to stop and stand still.
So you end up with 2 stationary D-men playing catch, while 2 forwards stand still along the boards in the neutral zone, and the Center is the only one with any motion at all, but not enough.
Then the D, from a stand-still tries a pass to the Center, who's only options are to tip it to a stationary forward, or dump it in.
If the D men stayed in motion, and the Center came back a little lower, and the forwards played a little criss-cross in the neutral zone, at least there'd be motion, if not exactly high-speed, and the options would multiply.
Least it seems this way to me.