It's unconfirmed, but it appears that Theo Epstein has finally rejoined the Red Sox in an official capacity. Rotoworld has broken the story on Epstein, and commented that the official announcement would be made next week.
Also mentioned on that site was today's signing of Willie Harris to a minor-league contract. Harris spent last year with the White Sox, appearing in 56 games. He's likely to be a utility role player, coming off the bench with some speed. It's not a huge signing, but it's progress. He'll probably be our 5th outfielder.