This was a no-brainer for the Red Sox as they have watched the left side of the infield struggle with injuries and lack of production. It was also becoming obvious that no other team was going to sign Drew before the June amateur draft arrives and that meant that Boston wouldn't receive any draft pick compensation if another team inked Drew.
Last year Drew helped the Red Sox win the World Series with vacuum like defense and a decent bat. He had a batting average of .253 with 13 home runs and 67 runs batted in. He will be a definite upgrade for the Red Sox, a team that may be suffering from a bit of a World Series hangover.
The deal is for one year and means that Drew will be a free agent at the end of this season. Since he wasn't with the team for the full season he can't have draft pick compensation attached to him and that should mean the market will open up a bit for him.
A minor league assignment is probably in Drew's future so that he can get into baseball shape, but it won't be long before Drew is back manning shortstop at Fenway Park.
This signing may not solve all the team's problems, but an injection of talent and sort of new blood may be what this team needs to snap it out of its malaise. The American League East is still tightly packed and up for grabs and changes like this could make a big difference.