CHICAGO -- The Cubs promoted outfielder Brett Jackson, the team's 2009 No. 1 Draft pick, from Class A Daytona to Double-A Tennessee on Sunday.

Jackson, who will play for the U.S. Team in next month's All-Star Futures Game, was batting .316 in 67 games with 19 doubles, eight triples, six homers and 38 RBIs.

Also promoted on Sunday from Daytona to Tennessee was right-hander pitcher Rafael Dolis, who was 4-5 with a 2.92 ERA in 14 games (13 starts). He had struck out 48 over 71 innings.

Trey McNutt, a right-handed pitcher who was 6-0 with a 1.51 ERA in 13 starts, was moved up from Class A Peoria to Daytona. McNutt struck out 70 over 59 2/3 innings. In his last start June 16 against Burlington, he gave up one run over five scoreless innings.

Ty Wright, who had 51 RBIs in 73 games, also was promoted, moving up from Tennessee to Triple-A Iowa. He was batting .289 with 21 doubles and 10 homers.

Back stiffness leaves Lee in DH slot

CHICAGO -- The Cubs took advantage of playing in an American League ballpark Sunday and started Derrek Lee as the designated hitter to avoid aggravating his back.

Lee had some stiffness that developed after the Cubs' trip to Seattle this past week.

"It's a little tight from that airplane trip [to Seattle], a four-hour trip," Cubs manager Lou Piniella said. "We're utilizing the [designated hitter] spot to give him a little bit of a breather. After today, you've got to play on the field. We'll DH him today and see how he feels tomorrow."

Lee, who also was the designated hitter on Saturday, said his back was a "non-issue."

"I have a little stiffness the last couple days," Lee said. "I'll take the opportunity to DH and get off the field. It's nothing."

'Productive' meeting helps Cubs move forward

CHICAGO -- A few of the Cubs said a team meeting on Saturday was beneficial. General manager Jim Hendry felt the players had a chance to "get some things off their chests."

"I thought it was very productive," Derrek Lee said. "Lou [Piniella] had some things to say. I thought it was a good meeting."

The meeting was called in the wake of Carlos Zambrano's dugout tirade on Friday. Piniella asked the players for feedback.

"That's a good sign from the manager," Lee said. "He's willing to take constructive criticism. I thought it was good."

Piniella said he was encouraged by the session because of the players' involvement.

"I got quite a few players to speak up and say some things," Piniella said. "That's what's important. As a manager, I can talk all I want. Invariably, you have to play between the lines. That's really the whole crux of this thing.

"That's why I was happy a lot of players got involved and said things they thought were important," he said. "I thought we played a good game [Saturday] night. Again, we came up short. If we can build on a good performance, where we made nice plays and hustled, it's got to pay dividends for us."

The only topic revealed was that the Cubs players want the lineup posted sooner. Piniella joked that next time, he'll invite the reporters, maybe even provide a transcript.

"It'll be like [President] Obama, and I'll give you a little briefing," he said.