Millwood, 37 in December, finished the season with Colorado, making nine starts with a 3.98 ERA. The Scott Boras client seeks a Major League deal, which Renck says makes this a "slow-developing situation." Renck notes that the Rockies were among the finalists to sign Harden last year, though they viewed him as a reliever.
As for their second base opening, the Rockies have had internal conversations about free agent Aaron Hill, according to ESPN's Buster Olney. Hill is also of interest to the Tigers, writes Lynn Henning of the Detroit News. The Rockies also have interest in Jamey Carroll, Mark Ellis, and others, reported Renck previously.
For more on the Rockies' needs and finances, check out my offseason outlook.