You're projecting a mess. Dombrowski was fired when they were 76–67 the season after winning the WS with a record setting team. It was an absurd firing. But it's evident now that it was done because John Henry no longer wanted to spend like that.
Keep in mind when I write this that I don't dislike Dave Dombrowski or the job that he did in Boston. He did what he was hired to do. And I agree that he's a Hall of fame executive.
That said, any team that finds itself with:
* Significant amounts of long-term payroll committed to older, injury-prone players in decline.
* Little in terms of young, low-cost, impact talent on the immediate horizon.
...is probably in for a rough few years.
And that's the position the Red Sox were in when Dombrowski got fired. At that point, it was already clear that he had committed a huge percentage of the team's payroll for the next several years to players that were not going to live up to their salaries. Furthermore, there was no help on the immediate horizon because Pawtucket and Portland were prospect wastelands.