John McPherson vs. Lou Polli — Career Comparison

John McPherson built a career as a starting pitcher and Lou Polli as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John McPherson posted stronger surface numbers — ERA 3.89 and WHIP 1.417 compared to 4.68 and 1.843 for Lou Polli. By the career numbers, John McPherson had the better of this cross-role comparison — though era context would sharpen the verdict.