Alejandro Chacin vs. John Jackson — Career Comparison

John Jackson built a career as a starting pitcher and Alejandro Chacin 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 10.5 and 2.500 for Alejandro Chacin. By the career numbers, John Jackson had the better of this cross-role comparison — though era context would sharpen the verdict.