The Bruins had far more depth on offense that season than they do no. Their middle six is incredibly inconsistent and we're relying on unproven talent to succeed.
This Bruins team has a much better 1st line and, dare I say it, a better D group top to bottom.
This Bruins team also doesn't have an epically bad powerplay.
Look, the middle six is obviously the teams biggest potential downfall... but lets not pretend they were not the best team in hockey this year even after going 0-7 in shoot outs. They were easily the best team this season.