i could not disagree more ...he is actually almost always in the correct position that a d-man should be in, the only time he is ever out of position is when he's forced to cover for his defense partner being out of position, and thats when it looks like he's running around, because he sees the blown coverage and tries to compensate, which often puts him in a 2 on 1 situation, as he has to leave his man to cover for his partner being in the wrong place, or missing entirely.
i exclusively watched his positioning the Det game, and he was always looking around to keep anyone from sneaking behind, and was always moving to the 'correct' position all game long, and adjusting to other players rotations (or mistakes) to not leave
Dermott on the other hand gets into trouble for exactly that reason, he chases the play rather than play his position properly.