I like your analysis, but want to add that they have 4 guys in their top 9 that are 35+. For everyone of the young guys that steps up, there is an equal chance one of the old guys will fall down.
Plus the goaltending is gross.
And I'd argue Boston's disastrous blue line has easily more upside than Detroit's.
I think Jimmy Howard is quite gross, but I actually love Petr Mrazek. I seriously think he steals that starting job from Howard this year, even if Howard is healthy.
And if you think about that team, they made the playoffs last year in spite of that d-core, and it kind of gives Bruins fans some hope in comparison.
I agree with your point about the old guys. I really think Datsyuk will never be truly healthy again, but when he is on the ice, he is still one of the best in the league. I don't think his production will ever drop off. It's just a matter of staying on the ice.
Zetterberg as well. Both him and Datsyuk are ageless. Those guys just ooze so much skill, as long as they can stay on the ice.
Franzen and Richards though, I can certainly see slipping. Richards we already know slipped, and Franzen we don't really know yet, but concussions are a tricky beast.
I think for that team to succeed, they need big years from Sheahan and Jurco, they need Mrazek to emerge, and they need one of Marchenko or Ouellet to really take over a steady role on defense. Either that, or Datsyuk and Zetterberg stay healthy.