The Red Sox’ stunning announcement that Dave Dombrowski will take over as president of baseball operations is still sinking in for many, but further changes figure to be on the way in Boston. Anthony Fenech of the Detroit Press spoke to Dombrowski and tweets that the new Boston president believes he will hire a GM to work underneath him (Twitter link). Bob Nightengale of USA Today Sports tweets that former Braves GM Frank Wren, who worked with Dombrowski in the Marlins and Expos front offices in the 1980s and 1990s, is a leading candidate for the position.