I'm going to quote my own posted for TNUOC because it doesn't seems he watched the game.. or realise what happened in it.
Chabot played the left side yesterday on some occasion and he did the same freaking things that are asked of left D.. He stepped up, broked play, and even made some hit.
Chabot doesn't need to be a big hitter to play the left side, he need to step up and break play with his stick and if their is a possibility of a good hit, do it.
Also, that would be very very naif to think that the puck is ALWAYS coming from the left side.. What happen if it come from the Right side, are they in a blackhole and they are not doing anything? No. The RD stepped up and it is the LD who retrieve the puck.
Both D side need to be able to step up, retrieve puck and breakout the puck. That's basic hockey.