Zach Jackson vs. Jim McElroy — Career Comparison

Zach Jackson built a career as a starting pitcher and Jim McElroy as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jim McElroy posted stronger surface numbers — ERA 5.12 and WHIP 1.543 compared to 5.81 and 1.566 for Zach Jackson. By the career numbers, Jim McElroy had the better of this cross-role comparison — though era context would sharpen the verdict.