Rockies manager Jim Tracy indicated Wednesday that Jeremy Guthrie could be bumped from the rotation "if we don't see improvement." The Rockies' big offseason pitching acquisition, Guthrie holds a 6.91 ERA and 1.75 WHIP through 10 outings. We suspect he'd eventually turn it around if some degree if left in the rotation, but we can't blame Tracy for having a short leash at this point. He didn't mention who might replace the veteran righty, but Drew Pomeranz has pitched well since being demoted to Triple-A.