David Martinez vs. Jim Shellenback — Career Comparison

Jim Shellenback built a career as a starting pitcher and David Martinez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jim Shellenback posted stronger surface numbers — ERA 3.81 and WHIP 1.447 compared to 6.38 and 1.418 for David Martinez. By the career numbers, Jim Shellenback had the better of this cross-role comparison — though era context would sharpen the verdict.