Jeremy Affeldt vs. Michael Grove — Career Comparison

Michael Grove built a career as a starting pitcher and Jeremy Affeldt as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jeremy Affeldt posted stronger surface numbers — ERA 3.97 and WHIP 1.448 compared to 5.48 and 1.386 for Michael Grove. By the career numbers, Jeremy Affeldt had the better of this cross-role comparison — though era context would sharpen the verdict.