We've all apparently been doing a good job of drinking the Sweeney Kool-Aid this summer, because y'all have voted this year's 15th overall pick Zach Senyshyn the 9th-best player or prospect in the Bruins organization. Last year, among players in their draft year in the OHL, he came in 11th in points per game. Which is decent enough, especially as he was further down the depth chart - Senyshyn was 10th on his team in even strength Time On Ice among forwards.
That puts him on the 4th line, pretty much. And scoring at an appropriate rate for that amount of ice time.