With the Cubs trade of Marlon Byrd to the Red Sox, there naturally is speculation that Brett Jackson, the Cubs’ No. 1 pick in 2009, would get called up. Not yet, Dale Sveum said.

“It’s just the plan we want to stick with and develop him,” Sveum said Sunday. “He still needs to develop. He’s still striking out a little too much. He needs to be more conscious and a little bit better in that situation. If you’re striking out that much in Triple-A, it’ll be that much more against big league pitching. Until you get those 500 at-bats at Triple-A, it’s something the organization and Theo [Epstein] want to impress on our young guys is you’ll stay and play and develop.”

Epstein has made it clear he wants young players to get their work in the Minor Leagues. Jackson began this season with 1,133 total Minor League at-bats, including 185 at Triple-A Iowa.

“I think sometimes we rush kids too quick and it’s not for anybody’s benefit,” Sveum said. “We’ve all been part of when kids have been rushed and they’ve done really well but it doesn’t happen very often.”

In 16 games this year with Iowa, Jackson, 23, was batting .254 with a team-leading 21 strikeouts.

— Carrie Muskat

Trading Marlon Byrd will naturally create expectations that Brett Jackson is coming to Wrigley Field. Not yet, GM Jed Hoyer said. Jackson will stay at Triple-A Iowa for now. In 15 games, Jackson was  batting .242 with two homers, five doubles, two triples, two stolen bases and eight RBIs.

“Brett’s playing hard and all the reports on what he’s doing in Iowa are good,” Hoyer said. “He’s still early in his Triple-A career. He hasn’t had that many plate appearances down there. He still has work to do. We feel he’s a big part of our future but I wouldn’t read into anything as far as timing.”

The Cubs did add outfielder Tony Campana to the roster on Saturday when they placed pitcher Ryan Dempster on the disabled list and will use him in center as well as Reed Johnson and Joe Mather.

Byrd, 34, was hitting just .070 over his first 43 at-bats. He did not play Saturday in the Cubs’ win over the Reds.

“The slow start didn’t play any part at all,” Hoyer said. “We had talked about a deal [with the Red Sox] at the end of Spring Training. Our feeling was we’ve been trying to acquire relief pitching since the end of the winter. We felt like an area we have some surplus with young players we want to play is in the outfield, so that was a big part of it.”

The Red Sox were in need after injury to Jacoby Ellsbury.

The Cubs, who are already paying a large part of Carlos Zambrano’s contract since he was traded to the Marlins, will cover a significant portion of Byrd’s $6.5 million salary for 2012. It’s the final year of a three-year, $15 million contract.

The Cubs receive reliever Michael Bowden plus a player to be named later, which will be selected from a designated list. It will most likely be a pitcher, Hoyer said.

— Carrie Muskat