After all I've said, it would be a cop-out to assign any blame to either. If I had a gun to my head, I'd flip a coin.
I do find the idea that DD of all people wasn't willing to offer a superstar a ton of money more comical than anything.
And it's stupid to blame Bloom too. The guy was hired just as Betts was entering his contract year, just as the team had luxury tax problems...pretty easy to connect the dots.
According to Mookie Betts, the Red Sox offer was not $300 million. It seems pretty obvious that this was all the work of John Henry, AKA Lowball Johnny. Henry treated Betts the same way he treated Lester and Bogaerts.