Willie Hernandez vs. J. C. Mejia — Career Comparison

J. C. Mejia built a career as a starting pitcher and Willie Hernandez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Willie Hernandez posted stronger surface numbers — ERA 3.38 and WHIP 1.321 compared to 8.32 and 1.697 for J. C. Mejia. By the career numbers, Willie Hernandez had the better of this cross-role comparison — though era context would sharpen the verdict.