Save for a few instances (1995, 1965, McGraw coming out of retirement in 1933), the MLB All-Star Game Managers have always been the previous year's pennant winners.
Well, I complained about this rule a few years ago- I said that making them automatically the managers for the Midsummer Classic is a bit ridiculous, compared to records determining it for NHL and NBA.
I did some research and found out every instance of who the managers would have been for every All-Star Game if they were solely determined on best record in the league going into the Midsummer Classic:
2012- Davey Johnson (Washington, NL) and Joe Girardi (NY Yankees, AL)
2011- Terry Francona (Boston, AL) and Charlie Manuel (Philadelphia, NL)
2010- Bobby Cox (Atlanta, NL) and Joe Girardi (NY Yankees, AL)
2009- Terry Francona (Boston, AL) and Joe Torre (Los Angeles, NL)
2008- Lou Piniella (Chicago, NL) and Mike Sciosica (LA Angels, AL)
2007- Terry Francona (Boston, AL) and Bud Black (San Diego, NL)
2006- Jim Leyland (Detroit, AL) and Willie Randolph (NY Mets, NL)
2005- Tony La Russa (St. Louis, NL) and Ozzie Guillen (Chicago, AL)
2004- Joe Torre (NY Yankees, AL) and Tony La Russa (St. Louis, NL)
2003- Bobby Cox (Atlanta, NL) and Bob Melvin (Seattle, AL)
2002- Joe Torre (NY Yankees, AL) and Bobby Cox (Atlanta, NL)
2001- Don Baylor (Chicago, NL) and Lou Piniella (Seattle, AL)
2000- Jerry Manuel (Chicago, AL) and Bobby Cox (Atlanta, NL)
1999- Bobby Cox (Atlanta, NL) and Mike Hargrove (Cleveland, AL)
1998- Joe Torre (NY Yankees, AL) and Bobby Cox (Atlanta, NL)
1997- Bobby Cox (Atlanta, NL) and Davey Johnson (Baltimore, AL)
1996- Joe Torre (NY Yankees, AL) and Bobby Cox (Atlanta, NL)
1995- Bobby Cox (Atlanta, NL) and Mike Hargrove (Cleveland, AL)
1994- Mike Hargrove (Cleveland, AL) and Felipe Alou (Montreal, NL)
1993- Dusty Baker (San Francisco, NL) and Cito Gaston (Toronto, AL)
1992- Tom Kelly (Minnesota, AL) and Lou Piniella (Cincinnati, NL)
1991- Tommy Lasorda (Los Angeles, NL) and Cito Gaston (Toronto, AL)
1990- Tony La Russa (Oakland, AL) and Lou Piniella (Cincinnati, NL)
1989- Roger Craig (San Francisco, NL) and Doug Rader (California, NL)
1988- Tony La Russa (Oakland, AL) and Davey Johnson (NY Mets, NL)
1987- Whitey Herzog (St. Louis, NL) and Lou Piniella (NY Yankees, AL)
1986- John McNamara (Boston, AL) and Davey Johnson (NY Mets, NL)
1985- Whitey Herzog (St. Louis, NL) and Bobby Cox (Toronto, AL)
1984- Sparky Anderson (Detroit, AL) and Dick Williams (San Diego, NL)
1983- Joe Torre (Atlanta, NL) and Bobby Cox (Toronto, AL)
1982- Harvey Kuenn (Milwaukee, AL) and Joe Torre (Atlanta, NL)
1981- Tommy Lasorda (Los Angeles, NL) and Billy Martin (Oakland, AL)
1980- Dick Howser (NY Yankees, AL) and Bill Virdon (Houston, NL)
1979- Dick Williams (Montreal, NL) and Earl Weaver (Baltimore, AL)
1978- Don Zimmer (Boston, AL) and Joe Altobelli (San Francisco, NL)
1977- Tommy Lasorda (Los Angeles, NL) and Bob Lemon (Chicago, AL)
1976- Whitey Herzog (Kansas City, AL) and Danny Ozark (Philadelphia, NL)
1975- Sparky Anderson (Cincinnati, NL) and Alvin Dark (Oakland, AL)
1974- Alvin Dark (Oakland, AL) and Walter Alston (Los Angeles, NL)
1973- Walter Alston (Los Angeles, NL) and Dick Williams (Oakland, AL)
1972- Dick Williams (Oakland, AL) and Sparky Anderson (Cincinnati, NL)
1971- Danny Murtaugh (Pittsburgh, NL) and Dick Williams (Oakland, AL)
1970- Bill Rigney (Minnesota, AL) and Sparky Anderson (Cincinnati, NL)
1969- Leo Durocher (Chicago, NL) and Earl Weaver (Baltimore, NL)
1968- Mayo Smith (Detroit, AL) and Red Schoendienst (St. Louis, NL)
1967- Red Schoendienst (St. Louis, NL) and Eddie Stanky (Chicago, AL)
1966- Hank Bauer (Baltimore, AL) and Herman Franks (San Francisco, NL)
1965- Dick Sisler (Cincinnati, NL) and Sam Mele (Minnesota, AL)
1964- Hank Bauer (Baltimore, AL) and Gene Mauch (Philadelphia, NL)
1963- Walter Alston (Los Angeles, NL) and Ralph Houk (NY Yankees, AL)
1962 (Both Games)- Ralph Houk (NY Yankees, AL) and Walter Alston (Los Angeles, NL)
1961- Fred Hutchinson (Cincinnati) managed both games; Bob Scheffing (Detroit) managed the first, Ralph Houk (NY Yankees) the second
1960 (Both Games)- Casey Stengel (NY Yankees, AL) and Danny Murtaugh (Pittsburgh, NL)
1959
1st Game- Joe Gordon (Cleveland, AL) and Fred Haney (Milwaukee, NL)
2nd Game- Al Lopez (Chicago, AL) and Bill Rigney (San Francisco, NL)
1958- Fred Haney (Milwaukee, NL) and Casey Stengel (NY Yankees, AL)
1957- Casey Stengel (NY Yankees, AL) and Fred Hutchinson (St. Louis, NL)
1956- Birdie Tebbetts (Cincinnati, NL) and Casey Stengel (NY Yankees, AL)
1955- Casey Stengel (NY Yankees, AL) and Walter Alston (Brooklyn, NL)
1954- Leo Durocher (NY Giants, NL) and Al Lopez (Cleveland, AL)
1953- Casey Stengel (NY Yankees, AL) and Charlie Dressen (Brooklyn, NL)
1952- Charlie Dressen (Brooklyn, NL) and Casey Stengel (NY Yankees, AL)
1951- Charlie Dressen (Brooklyn, NL) and Paul Richards (Chicago, AL)
1950- Eddie Sawyer (Philadelphia, NL) and Red Rolfe (Detroit, AL)
1949- Casey Stengel (NY Yankees, AL) and Burt Shotton (Brooklyn, NL)
1948- Lou Boudreau (Cleveland, AL) and Billy Southworth (Boston, NL)
1947- Bucky Harris (NY Yankees, AL) and Burt Shotton (Brooklyn, NL)
1946- Leo Durocher (Brooklyn, NL) and Joe Cronin (Boston, AL)
No Game in 1945
1944- Luke Sewell (St. Louis, AL) and Billy Southworth (St. Louis, NL)
1943- Billy Southworth (St. Louis, NL) and Joe McCarthy (NY Yankees, AL)
1942- Joe McCarthy (NY Yankees, AL) and Leo Durocher (Brooklyn, NL)
1941- Leo Durocher (Brooklyn, NL) and Joe McCarthy (NY Yankees, AL)
1940- Del Baker (Detroit, AL) and Bill McKechnie (Cincinnati, NL)
1939- Bill McKechnie (Cincinnati, NL) and Joe McCarthy (NY Yankees, AL)
1938- Ossie Vitt (Cleveland, AL) and Bill Terry (NY Giants, NL)
1937- Charlie Grimm (Chicago, NL) and Joe McCarthy (NY Yankees, AL)
1936- Joe McCarthy (NY Yankees, AL) and Frankie Frisch (St. Louis, NL)
1935- Bill Terry (NY Giants, NL) and Joe McCarthy (NY Yankees, AL)
1934- Joe McCarthy (NY Yankees, AL) and Bill Terry (NY Giants, NL)
1933- Bill Terry (NY Giants, NL) and Joe Cronin (Washington, AL)
Well, I complained about this rule a few years ago- I said that making them automatically the managers for the Midsummer Classic is a bit ridiculous, compared to records determining it for NHL and NBA.
I did some research and found out every instance of who the managers would have been for every All-Star Game if they were solely determined on best record in the league going into the Midsummer Classic:
2012- Davey Johnson (Washington, NL) and Joe Girardi (NY Yankees, AL)
2011- Terry Francona (Boston, AL) and Charlie Manuel (Philadelphia, NL)
2010- Bobby Cox (Atlanta, NL) and Joe Girardi (NY Yankees, AL)
2009- Terry Francona (Boston, AL) and Joe Torre (Los Angeles, NL)
2008- Lou Piniella (Chicago, NL) and Mike Sciosica (LA Angels, AL)
2007- Terry Francona (Boston, AL) and Bud Black (San Diego, NL)
2006- Jim Leyland (Detroit, AL) and Willie Randolph (NY Mets, NL)
2005- Tony La Russa (St. Louis, NL) and Ozzie Guillen (Chicago, AL)
2004- Joe Torre (NY Yankees, AL) and Tony La Russa (St. Louis, NL)
2003- Bobby Cox (Atlanta, NL) and Bob Melvin (Seattle, AL)
2002- Joe Torre (NY Yankees, AL) and Bobby Cox (Atlanta, NL)
2001- Don Baylor (Chicago, NL) and Lou Piniella (Seattle, AL)
2000- Jerry Manuel (Chicago, AL) and Bobby Cox (Atlanta, NL)
1999- Bobby Cox (Atlanta, NL) and Mike Hargrove (Cleveland, AL)
1998- Joe Torre (NY Yankees, AL) and Bobby Cox (Atlanta, NL)
1997- Bobby Cox (Atlanta, NL) and Davey Johnson (Baltimore, AL)
1996- Joe Torre (NY Yankees, AL) and Bobby Cox (Atlanta, NL)
1995- Bobby Cox (Atlanta, NL) and Mike Hargrove (Cleveland, AL)
1994- Mike Hargrove (Cleveland, AL) and Felipe Alou (Montreal, NL)
1993- Dusty Baker (San Francisco, NL) and Cito Gaston (Toronto, AL)
1992- Tom Kelly (Minnesota, AL) and Lou Piniella (Cincinnati, NL)
1991- Tommy Lasorda (Los Angeles, NL) and Cito Gaston (Toronto, AL)
1990- Tony La Russa (Oakland, AL) and Lou Piniella (Cincinnati, NL)
1989- Roger Craig (San Francisco, NL) and Doug Rader (California, NL)
1988- Tony La Russa (Oakland, AL) and Davey Johnson (NY Mets, NL)
1987- Whitey Herzog (St. Louis, NL) and Lou Piniella (NY Yankees, AL)
1986- John McNamara (Boston, AL) and Davey Johnson (NY Mets, NL)
1985- Whitey Herzog (St. Louis, NL) and Bobby Cox (Toronto, AL)
1984- Sparky Anderson (Detroit, AL) and Dick Williams (San Diego, NL)
1983- Joe Torre (Atlanta, NL) and Bobby Cox (Toronto, AL)
1982- Harvey Kuenn (Milwaukee, AL) and Joe Torre (Atlanta, NL)
1981- Tommy Lasorda (Los Angeles, NL) and Billy Martin (Oakland, AL)
1980- Dick Howser (NY Yankees, AL) and Bill Virdon (Houston, NL)
1979- Dick Williams (Montreal, NL) and Earl Weaver (Baltimore, AL)
1978- Don Zimmer (Boston, AL) and Joe Altobelli (San Francisco, NL)
1977- Tommy Lasorda (Los Angeles, NL) and Bob Lemon (Chicago, AL)
1976- Whitey Herzog (Kansas City, AL) and Danny Ozark (Philadelphia, NL)
1975- Sparky Anderson (Cincinnati, NL) and Alvin Dark (Oakland, AL)
1974- Alvin Dark (Oakland, AL) and Walter Alston (Los Angeles, NL)
1973- Walter Alston (Los Angeles, NL) and Dick Williams (Oakland, AL)
1972- Dick Williams (Oakland, AL) and Sparky Anderson (Cincinnati, NL)
1971- Danny Murtaugh (Pittsburgh, NL) and Dick Williams (Oakland, AL)
1970- Bill Rigney (Minnesota, AL) and Sparky Anderson (Cincinnati, NL)
1969- Leo Durocher (Chicago, NL) and Earl Weaver (Baltimore, NL)
1968- Mayo Smith (Detroit, AL) and Red Schoendienst (St. Louis, NL)
1967- Red Schoendienst (St. Louis, NL) and Eddie Stanky (Chicago, AL)
1966- Hank Bauer (Baltimore, AL) and Herman Franks (San Francisco, NL)
1965- Dick Sisler (Cincinnati, NL) and Sam Mele (Minnesota, AL)
1964- Hank Bauer (Baltimore, AL) and Gene Mauch (Philadelphia, NL)
1963- Walter Alston (Los Angeles, NL) and Ralph Houk (NY Yankees, AL)
1962 (Both Games)- Ralph Houk (NY Yankees, AL) and Walter Alston (Los Angeles, NL)
1961- Fred Hutchinson (Cincinnati) managed both games; Bob Scheffing (Detroit) managed the first, Ralph Houk (NY Yankees) the second
1960 (Both Games)- Casey Stengel (NY Yankees, AL) and Danny Murtaugh (Pittsburgh, NL)
1959
1st Game- Joe Gordon (Cleveland, AL) and Fred Haney (Milwaukee, NL)
2nd Game- Al Lopez (Chicago, AL) and Bill Rigney (San Francisco, NL)
1958- Fred Haney (Milwaukee, NL) and Casey Stengel (NY Yankees, AL)
1957- Casey Stengel (NY Yankees, AL) and Fred Hutchinson (St. Louis, NL)
1956- Birdie Tebbetts (Cincinnati, NL) and Casey Stengel (NY Yankees, AL)
1955- Casey Stengel (NY Yankees, AL) and Walter Alston (Brooklyn, NL)
1954- Leo Durocher (NY Giants, NL) and Al Lopez (Cleveland, AL)
1953- Casey Stengel (NY Yankees, AL) and Charlie Dressen (Brooklyn, NL)
1952- Charlie Dressen (Brooklyn, NL) and Casey Stengel (NY Yankees, AL)
1951- Charlie Dressen (Brooklyn, NL) and Paul Richards (Chicago, AL)
1950- Eddie Sawyer (Philadelphia, NL) and Red Rolfe (Detroit, AL)
1949- Casey Stengel (NY Yankees, AL) and Burt Shotton (Brooklyn, NL)
1948- Lou Boudreau (Cleveland, AL) and Billy Southworth (Boston, NL)
1947- Bucky Harris (NY Yankees, AL) and Burt Shotton (Brooklyn, NL)
1946- Leo Durocher (Brooklyn, NL) and Joe Cronin (Boston, AL)
No Game in 1945
1944- Luke Sewell (St. Louis, AL) and Billy Southworth (St. Louis, NL)
1943- Billy Southworth (St. Louis, NL) and Joe McCarthy (NY Yankees, AL)
1942- Joe McCarthy (NY Yankees, AL) and Leo Durocher (Brooklyn, NL)
1941- Leo Durocher (Brooklyn, NL) and Joe McCarthy (NY Yankees, AL)
1940- Del Baker (Detroit, AL) and Bill McKechnie (Cincinnati, NL)
1939- Bill McKechnie (Cincinnati, NL) and Joe McCarthy (NY Yankees, AL)
1938- Ossie Vitt (Cleveland, AL) and Bill Terry (NY Giants, NL)
1937- Charlie Grimm (Chicago, NL) and Joe McCarthy (NY Yankees, AL)
1936- Joe McCarthy (NY Yankees, AL) and Frankie Frisch (St. Louis, NL)
1935- Bill Terry (NY Giants, NL) and Joe McCarthy (NY Yankees, AL)
1934- Joe McCarthy (NY Yankees, AL) and Bill Terry (NY Giants, NL)
1933- Bill Terry (NY Giants, NL) and Joe Cronin (Washington, AL)