When JML returns unfortunately I think CMiller and Morrow are impacted...KMill not so much. KMill is over criticized here. He's far from useless.
I think you are right, and that fits with what we've seen in the past. Morrow already isn't playing, so if anything, it makes it tougher on him than it already is, but you are right, Chiller is going to take the full impact. This is a shame, really, as his game is beginning to come around and we can see why he was pretty highly regarded by the Kings organization at one time.
I agree with you Killer is not useless- he has some great moments out there, and when he moves his legs, he is not a bad skater. But, his game seems at odds with what the Bruins are trying to do with improving exiting their own zone and juicing up their transition game. In those areas, KMill just isn't what they need- either Chiller or Morrow are better in that regard, even if they give up something to Kevan on the defensive/physicality side.
From a Clode point of view, however, Liles back gives you that puck moving game and at this point in their careers, is probably better than either Morrow or Chiller in how he thinks the game and sees it develop, and positioning. To which we can always say: how do we expect Chiller/Morrow to improve in these areas without the ice time? I'd prefer K Miller to get put into a rotation with McQuaid and let Chiller continue to develop especially as it doesn't look like we are just that small step away from being a playoff team at this point.