*shakes head*
I think they'd have been insane not to make a shift. That was the year they lost Schilling, and they have still never managed to adequately replace him. That's also when the game of "Who Is Our Shorstop This Week?" began, when Tek started to seriously play out, Manny was gone, Drew was ineffective and then gone, Beckett sagged down into his on-again, off-again pattern, Buchholz revealed himself to be a project rather than a potential ace... basically we got hit with a whole lot of entropy in the wake of the 2007 World Series title that we've never managed to successfully reverse or recover from.
So in 08 and 09, they went ahead and brought in some patchwork veterans to try to play the string out, and that kinda worked, but each year was worse than the last so they tried to make a series of over-the-top moves... while they were nowhere near the top. And paid for it.
Once we rebuild our core into something stable that can contend for multiple years in a row without major repair work each offseason, I expect the FO to start resembling the version of itself we had in 03-07 when that was true. Until then, it's going to be the team doing everything it can to rebuild itself in any given year, which means you don't have a lot of resources left for over the top moves like Schill was in 04.