John Dettmer vs. Jim Shellenback — Career Comparison

On the career pitching numbers, Jim Shellenback posted a stronger line than John Dettmer. Jim Shellenback posted stronger numbers in ERA (3.81 vs 4.47) and WHIP (1.447 vs 1.620). By the career numbers, Jim Shellenback had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.