Keith Atherton vs. Armando López — Career Comparison

Armando López built a career as a starting pitcher and Keith Atherton as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Keith Atherton posted stronger surface numbers — ERA 3.99 and WHIP 1.407 compared to 6.62 and 1.918 for Armando López. By the career numbers, Keith Atherton had the better of this cross-role comparison — though era context would sharpen the verdict.