A clear picture of the Rockies' bullpen targets has emerged in the first week of free agency. They want power arms, and are casting a wide net that includes expressing interest in Brian Wilson and Grant Balfour.

The Rockies are aiming high as they try to upgrade a relief corps that struggled dramatically in Rafael Betancourt's absence, finishing with a 4.23 ERA, ranking 28th in baseball. They also like former Detroit setupman Jose Veras and Cleveland sidearmer Joe Smith.

When Wilson was recovering from his second elbow ligament surgery last summer, the Rockies were among several teams that scouted the right-hander. He considered Colorado before signing with the Dodgers, who made the highest offer. The Rockies like Wilson, and were encouraged by his strong finish. Pitching effectively in a setup role for the Dodgers, Wilson's fastball averaged 95.31 mph in October, based on Brooksbaseball.net data, with his cutter at nearly 91 mph, similar to his prime years with the San Francisco Giants.

Colorado has a potential closer in Rex Brothers but would like a safety net, giving them the flexibility to use Brothers as a setupman or to match up against left-handers.

Balfour has received calls from five teams, according to The San Francisco Chronicle. Colorado is a longshot given Balfour's east coast residency and believed desire to pitch for a proven contender. Balfour recorded 38 saves with a 2.59 ERA for the American League West champion Oakland Athletics last season.