Aaron Bummer vs. Bob Smith — Career Comparison

Bob Smith built a career as a starting pitcher and Aaron Bummer as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Aaron Bummer posted stronger surface numbers — ERA 3.8 and WHIP 1.355 compared to 3.94 and 1.399 for Bob Smith. By the career numbers, Aaron Bummer had the better of this cross-role comparison — though era context would sharpen the verdict.