Florida is a team we should be beating, true. Nashville with the lowest goal total in the league and with its best scorer out of the lineup was a team we should have beat. A struggling Bruins team with no Lucic or Savard was a team we should have beaten. I hope the pattern doesn't continue.
I hate to say it, but "replacing" Karlsson with Kuba will give us a little more stability on defense. Perhaps that will be enough to stop us from giving up 0-3 first-10-minute leads or giving up 2 goals with under 2 minutes to go. Because, really, that's the reason for the losses.
As for the powerplay, I don't know if practicing it for 90 minutes straight is going to do anything but get them even more tense. They've got to relax -- forget about the set plays which only serve to tighten the grip on the stick (as they try to remember everything they learned in the drills). Forget the routine, just crash the net and shoot the puck, sometimes reverse the order.