Jennings went 9-13 last season, when he had had the second-lowest run support in the NL. The Rockies were shut out in four of Jennings' starts and scored just one run in five other losses, and his 3.78 ERA made him just the second Rockies pitcher to post an ERA below 4.00
Jennings made $4.4 million last season, part of a $7 million, two-year deal he signed in 2004. His buyout would have been $100,000.
Also Tuesday, the Rockies promoted Alan Cockrell to hitting coach and Glenallen Hill to first base coach. Cockrell, 43, served as the team's hitting coach for five months in 2002 after Clint Hurdle was promoted to manager and then spent the last four season as hitting coach at Triple-A Colorado Springs.
Hill, 41, who played in the major leagues for 13 seasons, was the hitting coach at the Rockies' Class A affiliate for the last three years and served as manager at Modesto for the final three months of last season after Chad Kreuter became head baseball coach at Southern Cal.