Joe Kelly: Carpenter Injury Opens Door Staff

Update: Chris Carpenter is out indefinitely and likely to miss all of 2013, creating an open spot in the Cardinals' rotation for Kelly, Shelby Miller, or Trevor Rosenthal to win in spring training.

Recommendation: While Miller and Rosenthal have the blue-chip prospect status on their side, Kelly has 107 quality MLB innings under his belt from 2012, including 16 starts. He pitched to a 3.53 ERA, though his 1.38 WHIP was 16th-worst among NL starters with at least 100 innings. He doesn't offer nearly the upside of the others and profiles similarly to teammate Jake Westbrook.