Sean Marshall vs. John Wells — Career Comparison

John Wells built a career as a starting pitcher and Sean Marshall as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Sean Marshall posted stronger surface numbers — ERA 3.86 and WHIP 1.368 compared to 5.4 and 1.933 for John Wells. By the career numbers, Sean Marshall had the better of this cross-role comparison — though era context would sharpen the verdict.