I'm worried that the Sox, in response to this move, might seek to make a splash of their own. This would be unwise. Let the fans whine and moan about the Sox being the 5th best team in the division (which they already were in 2012). The Red Sox should stick to their plan, worry about themselves, improve as much as they can this off-season without sacrificing their ability to continue to improve.
It's going to take more than one off-season, and more than one or two moves to improve the Sox. They're a 69 win team and finding 25+ additional wins will take some time. Likely more than one off-season.
So calm down, Red Sox Nation. It's your panic that can trigger Larry Lucchino to call Ben Cherington and say "we need to do something."
There really isn't much out there for the Sox to acquire. I'd like to see Zach Greinke here, but he might be too expensive. Mike Napoli doesn't impress me. I wouldn't mind Josh Hamilton, especially with Jacoby Ellsbury getting his luggage ready.
The Sox have money, but that's no excuse to spend carelessly. They need to be prudent. I'm reminded of The Simpsons episode with the monorail.
The Sox need to listen to Marge and fix Main Street's potholes before investing in a shiny mass transit system.
Although I wouldn't put it past Lucchino to build an elevated monorail line that encircled Fenway Park, with stops at the Monster, the bleachers, the Bud Deck, and Yawkey Way.