By C. Trent Rosecrans

After adding to the front of their rotation, the Reds are adding to the back of the bullpen, getting closer to acquiring Cubs lefty reliever Sean Marshall in return for left-handed starter Travis Wood and two prospects, CBSSports.com's Danny Knobler confirms.

Marshall, 29, has just seven career saves, but figures to be either the closer or set-up man for Cincinnati, which lost closer Francisco Cordero to free agency. Marshall was 6-6 with a 2.26 ERA with the Cubs last season, striking out 79 batters in 75 2/3 innings. He is signed through this season at $3.1 million in 2012 and will be a free agent after the season. He would join fellow lefty Bill Bray in the bullpen, as the team has said it expects Aroldis Chapman to move to the rotation.

Wood, who will be 25 next season, is 11-10 with a 4.18 ERA in 39 big league games and 35 starts. Last season he was 6-6 with a 4.84 ERA, striking out 76 batters in 106 innings. The Reds drafted Wood out of high school in the second round of the 2005 draft. He's under team control through the 2016 season and isn't arbitration-eligible until after the 2013 season.

The Reds sent three of their top 10 prospects to acquire Mat Latos and appear to be selling out for the 2012 race after watching their biggest divisional rivals lose major pieces with the Cardinals losing Albert Pujols and the Brewers facing a season without Prince Fielder and Ryan Braun facing a 50-game suspension.

The Cubs, on the other hand, appear to be listening to offers for just about anyone on their roster -- except for maybe Starlin Castro. Several sources have said the new Cubs brass now sees the state of the franchise as a long-term project and that there will be no real quick fix. David Kaplan of CSNChicago.com wrote the same thing on Wednesday, noting baseball officials say Chicago could be in for a "complete and total rebuild."

Wood would help the team long-term, even if he's nothing more than a fourth or fifth pitcher in Chicago, because he is affordable and under team control for so long. The Cubs could also try to deal closer Carlos Marmol, who is under contract through 2013 and outfielder Marlon Byrd, a free agent after the season, in an attempt to shed payroll and acquire prospects. However, finding takers that will take both money and give prospects could be tough for any of those names. The team's best trade chip is right-hander Matt Garza, who is under team control for the next two seasons. Based on what the Reds gave up for Latos, the Cubs could be tempted to move him for prospects -- the exact thing the previous regime gave up to get Garza.