Ghost struggles a bit with pressure since his injury, before it was judgement, now I think it's simply that he lost something after surgery. He's still a good player and a top PP QB, but something special is gone, you could see it when he tried one of those end to end rushes (which I approve when you're down 4-1), there just wasn't any magic and the Penguins weren't backing off.
Sanheim on the other hand, is growing up before our eyes, and yes, I think sending him down was the best thing that happened to him, he went back to AHL, got his s**t together, and came up more confident and has steadily improved. Give him a few more lbs and another year or two of experience and he's going to be a dominating player.
You can see why Giroux was moved to LW, he's shifty, smart, quick but undersized and just lacks the speed to force people to back off in a faster NHL. And he tries too hard to make things happen, he'll be a better player as the talent continues to improve and there's less pressure on him to carry the team. The playoffs expose faults when playing a top team, in his case, the faults are physical, the heart and brain is there. But stop worrying about trying to win a Cup before his peak years are behind him, he's not going to carry this team (nor could he two years ago or four years ago), he's going to be the older statesmen for the young studs who will carry this team.
Provorov is really coming into his own, the first game he had the jitters, second game he played well and it continued this game. His game is built for playoff hockey, crowds and pressure don't faze him.
Konecny is such a brat, has to get smarter about how to agitate (make sure the refs don't see the initial dirty move that triggers a counter move that results in a penalty call), but he's great at drawing penalties. Needs more experience to learn how to play smarter, but is going to be the kind of pest that helps you win.
Hextall is playing Lehtera, Laughton, Read, Filppula, as little as possible, which tells you all you need to know about their future.