Shortstop Paul Janish, infielders Adam Rosales and Danny Richar, starting pitcher Adam Pettyjohn and relievers Jon Adkins, Danny Herrera and Josh Roenicke will be promoted.
"It's mostly on the recommendations of our Minor League people for guys that have had good years," Reds manager Dusty Baker said on Monday.
Some roster juggling will have to be done before Wednesday's game. Pettyjohn, Adkins and Roenicke are not on the 40-man roster, and three guys will have to be taken off to make room.
The one significant name missing is Bailey. The right-handed starting pitcher, who broke a 21-game winless streak in the Majors and Minors with a win during Louisville's postseason, has a sore right knee and will be examined by team medical director Dr. Tim Kremchek this week. Bailey, who was 0-6 with a 7.93 ERA in eight starts over two callups for the Reds earlier this season, suffered a mild sprain of the medial collateral ligament in the same knee a couple of weeks ago.
"We'll probably shut him down, depending on what the doctor finds," Reds general manager Walt Jocketty said. "He made the one start in the playoffs, but he wasn't 100 percent. We're not going to push it."
Also not included in the promotions were lefty starter Matt Maloney and outfielder Drew Stubbs, the organization's first-round pick in the 2006 First-Year Player Draft. Neither player was on the 40-man roster.
Maloney went 11-5 with a 4.59 ERA. He walked 39 and struck out 132.
"We had roster problems, but he had a good year," Jocketty said. "He had a good start in the playoffs. He gave up three home runs, but he pitched really well. He's going to pitch winter ball and get some innings."
Stubbs, who does not have to be protected on the 40-man roster until 2010 at the earliest, was a long shot at best to get a callup. The speedy outfielder began the season at Class A Sarasota but batted .293 in 19 games with Louisville.
"It's too soon. We just felt it was too early to bring him up," Jocketty said.
The 31-year-old Pettyjohn was 15-6 with a 4.59 ERA in 28 starts this season. There were no indications that the lefty would be plugged in for a start.
"We'd like to," Baker said. "A lot depends on [Josh] Fogg's health. [Ramon] Ramirez is throwing the ball well. You want to leave [Bronson] Arroyo, [Johnny] Cueto, [Aaron] Harang and [Edinson] Volquez alone. Let them pitch unless something is wrong."
Janish, Rosales and Herrera had previous stints this season with the Reds. In 31 games, Janish batted .188. He batted .252 with seven homers and 42 RBIs in 92 games for Louisville. Rosales went 1-for-10 in nine games, mostly in pinch-hitting duty, but hit .287 with 11 homers and 58 RBIs for the Bats. Herrera, a lefty screwball specialist, worked three innings over two games in the big leagues. He had a 2.78 ERA over 47 appearances with Louisville.
The arrival of Roenicke will bring one of the organization's top prospects to the big leagues for the first time. The right-handed reliever was 6-2 with a 2.80 ERA and 13 saves with Louisville and Double-A Chattanooga this season.
Richar, who batted .260 with 11 homers and 55 RBIs at Triple-A, was acquired in the July 31 trade that sent Ken Griffey Jr. to the White Sox.
Adkins, who just turned 31, was 1-4 with a 3.48 ERA and 30 saves in 57 relief appearances for Louisville. The right-handed veteran has previously been in the Majors with the White Sox, Padres and Mets.
With a more crowded bench and bullpen, Baker will have more maneuvers at his disposal. If he does make use of the added players, it would also give the organization another opportunity to make evaluations.
"We want to see as many of the young guys as we can and get a sense of what we have going into the offseason," Jocketty said. "A couple of guys had really good seasons and we want to see what they can do."