Edwin Jackson vs. Carlos Rosa — Career Comparison

Edwin Jackson built a career as a starting pitcher and Carlos Rosa as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Carlos Rosa posted stronger surface numbers — ERA 3.97 and WHIP 1.471 compared to 4.78 and 1.486 for Edwin Jackson. By the career numbers, Carlos Rosa had the better of this cross-role comparison — though era context would sharpen the verdict.