The Red Sox timed Josh Beckett’s contract extension to save money:
By announcing the deal after the season started, Beckett’s new salary isn’t included in luxury tax calculations until next year. If the Red Sox announced it before the opener, it would have raised his average annual pay and been included in the calculations for this year, potentially increasing the team’s luxury tax.
The Red Sox are always on top of things. The article notes that most of the current rotation is controlled by the Red Sox through 2014, with Matsuzaka falling out after 2012. That’s a good thing if they all live up to expectations, but it’s also possible that Lackey and Beckett start to fade, in which case these are great contracts for the Red Sox’s opponents.