I'm hesitant to try and draw any meaning from such a small sample size for most players, but preseason shot attempt numbers could help change expectations for some players. With most of the forward positions locked up, there wasn't much to play for, other than timing, and getting used to linemates. Some prospects that stood out however, were Brian Ferlin, Austin Czarnik, Frank Vatrano, and Alex Khokhlachev. Joe Morrow was also above 50% of the shot attempts, and well needed as this preseason was his make or break year, needing waivers to be sent down now. Chris Kelly was the only Bruins regular to have posted an above average shot attempt rate in the preseason.
Joonas Kemppainen, Kevan Miller, Tyler Randell, and Ryan Spooner did not have a good preseason, getting heavily out shot. Some of this could be attributed to who they were playing with, but it is still somewhat alarming. Perhaps the Bruins should consider moving Eriksson from his current first line spot with Bergeron and Marchand to the Spooner line to help him defensively, and in shot attempts. I'll be concerned if these numbers stay where they are into the regular season, but for now, let's treat them like the tuneup games that they are.
This chart thanks to @IneffectiveMath, who also has a patreon, so creating hockey visualizations can be his full time job. He's a good guy, and if you can help support him it would be appreciated. Numbers outlined in blue are players on the bubble, green are the roster locks, and red are players who have already been sent down.