Francisco de la Rosa vs. Mark Leiter — Career Comparison

Mark Leiter built a career as a starting pitcher and Francisco de la Rosa as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Francisco de la Rosa posted stronger surface numbers — ERA 4.5 and WHIP 2.000 compared to 4.57 and 1.412 for Mark Leiter. By the career numbers, Francisco de la Rosa had the better of this cross-role comparison — though era context would sharpen the verdict.