Bregman FWar the last 3 years has averaged 4.66.
If players are getting around $7.5 million per in free agency and Bregman were to average that in Boston he would be worth about $105 million dollars.
If Bregman is not worth that, it's because he has fallen off a cliff. If he falls off a cliff, imagine being on the hook to pay him $170 million+ over the next 6 years? That would be worse.
The $5 million a year overpay, is not as extreme as people are making it out to be, and it's a more than fair premium to have the player on only 3 years and pay him until 33 years old without having to carry him at 34, 35, 36.