An announcement may not come until later this afternoon or tomorrow, but the Red Sox have finalized their coaching staff.

Third base coach DeMarlo Hale will replace Brad Mills (now manager of the Astros) as bench coach. Tim Bogar will move from first base to third base and Triple-A Pawtucket manager Ron Johnson will become the first base coach.

John Farrell (pitching) and Dave Magadan (hitting) will stay in their jobs

Theo Epstein said several weeks ago that the staff changes would be made internally, so none of this comes as a surprise.

UPDATE, 6:05 p.m.: It's all official now. Here's the release from the Sox:

The Boston Red Sox today announced their 2010 Major League coaching staff. DeMarlo Hale has been named bench coach, Tim Bogar will serve as third base coach, Ron Johnson joins the staff as the first base coach and Rob Leary has been appointed Major League coaching staff assistant.

Additionally, Pitching Coach John Farrell, Hitting Coach Dave Magadan and Bullpen Coach Gary Tuck will all return in the same roles they held in 2009.

Executive Vice President/General Manager Theo Epstein and Manager Terry Francona made the announcements.

Hale, 48, has served as Boston’s third base coach for the last four seasons. He was previously the first base and outfield coach for the Texas Rangers from 2002-05 and managed Texas’ Triple-A Oklahoma club during the 2000 and 2001 seasons. Hale began his coaching career in the Red Sox organization in 1992 and spent seven seasons as a minor league manager in the Boston system from 1993-99, compiling a 491-471 record. Selected by the Red Sox in the 17th round of the 1983 June Draft, he played five minor league seasons as a first baseman/outfielder in the Boston (1983-86) and Oakland Athletics (1988) organizations.

The 43-year-old Bogar will enter his second year with the Red Sox after joining the club as first base coach prior to the 2009 campaign. He served as the quality assurance coach for the Tampa Bay Rays in 2008 and previously managed in the Houston Astros (2004-05) and Cleveland Indians (2006-07) minor league systems, leading his clubs to a 289-200 mark and three postseason appearances. A former infielder selected by the New York Mets in the eighth round of the 1987 draft, Bogar played 701 Major League games over nine seasons with the Mets (1993-96), Astros (1997-2000) and Los Angeles Dodgers (2001).

Johnson, 53, will enter his 11th season in the Red Sox organization in 2010, his first on the Major League staff. He was most recently at the helm of Boston’s Triple-A Pawtucket club from 2005-09. A minor league manager for the past 18 seasons, Johnson has posted a 1,261-1,262 career record. He joined the Boston system in 2000 as manager of Single-A Sarasota (2000-01) and also led the Red Sox Double-A affiliates in Trenton (2002) and Portland (2003-04). Johnson began his coaching career in the Kansas City Royals chain, including eight seasons as a minor league manager from 1992-99. A 24th-round selection by Kansas City in 1978, Johnson hit .261 (12-for-46) in 22 Major League games over parts of three seasons with the Royals (1982-83) and Montreal Expos (1984).

Leary, who turns 46 on December 3, will enter his ninth season in the Red Sox organization in 2010. As the club’s Major League coaching staff assistant, his duties will include organizing Spring Training workouts, helping the coaching staff in all pre-game on-field preparations, assisting in the advance scouting effort, as well as completing special in-game assignments as delegated by Manager Terry Francona. Leary joined the Boston system as a roving minor league catching instructor in 2002 and has served as the minor league field coordinator for the last seven seasons. He spent seven years with the Florida Marlins from 1995-2001, during which he held the positions of advance scout, director of field operations, minor league field coordinator and catching instructor. Drafted by the Expos in the 12th round in 1986, Leary played five minor league seasons and served as a player/coach with Single-A Rockford in 1990. He managed Rockford from 1991-92 and also was at the helm of Single-A West Palm Beach in 1993-94.