Jack Leiter vs. Peter Moylan — Career Comparison

Jack Leiter built a career as a starting pitcher and Peter Moylan as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Peter Moylan posted stronger surface numbers — ERA 3.1 and WHIP 1.395 compared to 4.8 and 1.361 for Jack Leiter. By the career numbers, Peter Moylan had the better of this cross-role comparison — though era context would sharpen the verdict.