I've said all along, I don't think they ever valued Bogey at the "market rate" at any point on the timeline of contract talks.
They certainly never valued him at what BorA$$ was asking, of he'd be here.
I'd guess it might have something to do with his defense and reluctance to move off position, but it might have just been something very simple. They just did not ever place the value needed to get the job done. They might turn out to be right.
It's easy to look and say, had they only offered Bogey what they maybe offered him near the end, 2-9 months earlier, he might still be here, but the market going up is what might have changed their off- not what they thought he was valued at comparatively.
For argument's sake, say we could have gotten Bogey for $200M/8 back in March. The Sox must not have wanted him for that, or they thought nobody would offer than ,and he'd come back and settle for $190M/8 or lower. My guess is they didn't want him at even $190M/8. Then, when the price went up, their offer never kept pace or maybe even barely budged.
I cannot say for sure, but I'm thinking the Sox would not sign him, right now, for $210M/8. That's why he's gone. They might have grossly underestimated what other GMs would spend and truthfully felt they could sign him and were not lying when they said, he was their top priority.
We may never know. I could be way off.