John Jackson vs. Colin Selby — Career Comparison

John Jackson built a career as a starting pitcher and Colin Selby as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Jackson posted stronger surface numbers — ERA 6 and WHIP 2.019 compared to 6.2 and 1.556 for Colin Selby. By the career numbers, John Jackson had the better of this cross-role comparison — though era context would sharpen the verdict.