Mickey Callaway, the former Ole Miss pitcher; Ron Gardenhire, the Jackson Mets shortstop from way back when; and ex-Jackson State slugger Dave Clark are among the candidates for the four managerial openings in the big leagues, according to various reports. Callaway, Cleveland’s pitching coach, is rumored to be the favorite in Philadelphia but is also said to be a good fit for the New York Mets. Gardenhire, currently bench coach for Arizona, is reportedly under consideration for the job in Boston and also Detroit, where Clark has been the third-base coach for four years. Gardenhire managed in Minnesota for 13 seasons, winning over 1,000 games and making six postseason trips. Clark was an interim skipper in Houston in 2009. … Charlie Morton, one of three former Mississippi Braves on Houston’s current roster, will start Game 3 of the American League Championship Series tonight at New York. CC Sabathia starts for the Yankees. Morton, a 14-game winner this season, yielded two runs in 4 1/3 innings in Game 4 of the ALDS at Boston, a game the Astros won 5-4 to claim the series. M-Braves alums Brian McCann and Evan Gattis also play for the Astros, whose hitting coach is onetime Jackson Generals coach Dave Hudgens. … Former M-Braves star Jason Heyward went 0-for-3 in the Chicago Cubs’ 4-1 loss to the Los Angeles Dodgers in Sunday night’s NLCS Game 2. Heyward is just one of numerous Cubs slumping this postseason; he is 2-for-15 this year and is batting .155 in 35 career postseason games. … Ole Miss alum David Goforth, who pitched briefly for Milwaukee in 2017, is now working in the Mexican Pacific League, and Southern Miss product Scott Copeland, a Miami minor leaguer, is pitching in the Dominican Winter League. Those leagues started last week.