The Penguins under Mike Sullivan are playing...fun again. It feels that way to me at least. They're suppressing shots, something the team seemed to struggle with under Mike Johnston. They're generating shots of their own, while still suppressing shots, which is a certain recipe for success.
Through the six games the Penguins have played since firing Mike Johnston, Mike Sullivan's Penguins have put up a 61.5% Corsi For at 5v5. Same sample sizes be damned, that's fantastic.
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This is borderline hilarious. The Penguins were bleeding shot attempts at times under Johnston, and since his firing, the Penguins have skyrocketed upwards in their differential, and are back into positive numbers, somewhere the Penguins hadn't been since the sixth game of the season, where they were barely above zero.