Usually when organizations take these type of steps, it's for a combination of the reasons stated above. The team's upper management, including Breslow, probably feel they were not getting the ROI they should have been getting from the organization as it stands. And there may very well have been a directive to cut costs. Both can be true, and likely are.
The impression I have from outside the house is that the team was spending a lot of money in scouting and not getting anything more out of it than the rest of the league. If so, then these moves are not at all surprising.
What changed is the RedBird stake. These types of investors tend to seek pure economic returns versus wins. They are fans of money and huge yields versus the joy of competing for titles.
I could be wrong but I didn't think Redbird has a majority or even plurality stake in the team. Maybe that's changed, and I do realize that even minority shareholders can have a lot of say in how things are run. And they certainly could be asking the questions about whether the team is getting its expected value from the front office staff.
Doesn't that describe this past offseason? And other than Giolito (YMMV if him being healthy was the difference between the Sox being a middling team or a contender) and trading for O'Neil (a good trade!), they did not do much to upgrade. And after the fact, the line seemed to be "well, no one actually wanted to play in Boston" and "injuries", the latter of which only seems to affect the Red Sox the last several years. So I guess my question is why would you expect next year to be different?
I know people disagree but last season's team was never really in serious contention for a wild card. It also had a lot of expensive pieces in player like Sale and pending free agents such as Verdugo who had
one foot both feet out the door. There were also real question marks around Houck and Crawford and Whitlock. The former 2 have at least established themselves as decent pitchers (obviously different roles), and the last will clearly be bullpen material going forward. And the team has four significant and highly touted prospects expected to all compete for roles in spring training. These are marked differences in terms of trajectory.
It's fair that there's an open question as to whether the team will spend to bring in the talent to fill the holes, especially in the pitching staff. So it will be both surprising and disappointing if the team stood still, even more so than this past offseason.