From the Cubs' official release:
The Chicago Cubs today acquired right-handed pitcher Aaron Heilman from the Seattle Mariners for infielder Ronny Cedeno and left-handed pitcher Garrett Olson.
Heilman, 30, has gone 22-33 with nine saves and a 4.24 ERA (212 ER/450.1 IP) in 305 appearances (25 starts) in all or part of the last six seasons with the New York Mets. He has limited opponents to a .245 batting average (413-for-1687) during this time, including a .241 mark (227-for-940) by righthanders and a .249 average (186-for-747) by lefthanders. Heilman has struck out 395 batters in 450.1 innings, an average of 7.9 strikeouts per nine innings, while his 69 holds since the start of the 2005 season rank third in the National League.
The righthander recorded three consecutive seasons with a 3.62 ERA or lower starting with his first full major league campaign in 2005 when he went 5-3 with five saves and a 3.17 ERA (38 ER/108.0 IP) in 53 appearances, including seven starts. Starting in 2006 when he went 4-5 with a 3.62 ERA (35 ER/87.0 IP) in 74 appearances, Heilman has pitched exclusively in relief and averaged 78 appearances in each campaign.
Heilman turned in his strongest season in 2007 when he went 7-7 with one save and a 3.03 ERA (29 ER/86.0 IP) in 81 outings, setting career bests in wins, ERA and appearances. He ranked third in the National League in relief wins, fifth in appearances and tied for eighth with 22 holds. Heilman stranded 21 of his 29 inherited runners, including his first 16 of the season, and finished strong by posting a 1.85 ERA (8 ER/39.0 IP) in his final 36 outings starting July 22.
I have to say, I hate this deal. Essentially, it boils down to Pie and Cedeno for Heilman and Henry Williamson -- I'd have expected a better return for those two. There isn't much Heilman can do that Angel Guzman can't -- or, for that matter, Mitch Atkins.
Unless this is a precursor to another deal, I'm mystified.