The only thing full of holes is this argument, which is basically you preaching from the mountain top. Skjei has shown that he is woefully unfit to be on the top pairing. Smith has himself in a role that he looks good in. Expand it and we have seen what happens. You state "Play the kids more". My belief is that the coaches would say: "They have not shown that they can handle more and force feeding them would hurt their development.". So you get what you get. Neither Quinn, nor Gorton, nor JD have deemed that Lindgren should be playing those minutes right now. Neither Quinn, nor Gorton, nor JD seem to believe that the rookies should be playing larger minutes.
So much as it is hard to watch, Staal is in there to take the body blows until one of those things changes. It is awful to watch, but the triumvirate of Quinn, Gorton & JD are playing the long game. I will tend to trust their judgement in his ahead of simply screaming "Play the kids!".