That's partly because he and Koivu tend to dominate the PP. Both are slow, have mediocre shots, and don't move in the Ozone. It makes for an easy PP to defend.
The PP as a unit has to be somewhat interchangeable, and be able to move around and still be effective.
There's no doubt that we could use better personnel. Dumba is perfect as a shooter, and maybe even a QB, in the future....I want him out there for almost the entire PP. We also need a RH shooter from the half wall. Would be nice if Kunin could be that guy. Parise , and maybe Greenway can be two different looks at the crease. Granlund is fine ...on the right half wall only, please.
I'm sure they do this during practice, but they have to continue to practice changing positions during the PP. I suspect( but don't know) that they practice it, but then Suter reverts when he gets to games, and does what he is comfortable with.
Oh, and Staal/ Koivu only seem to be comfortable in the slot, yet how many times do they get a shot, deflection or good pass off from that position? They just sort of stand there. Why not move a bit?