John Jackson vs. Charlie Knepper — Career Comparison

John Jackson built a career as a starting pitcher and Charlie Knepper as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Charlie Knepper posted stronger surface numbers — ERA 5.78 and WHIP 1.748 compared to 6 and 2.019 for John Jackson. By the career numbers, Charlie Knepper had the better of this cross-role comparison — though era context would sharpen the verdict.