John Lannan vs. Rosario Rodriguez — Career Comparison

John Lannan built a career as a starting pitcher and Rosario Rodriguez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. John Lannan posted stronger surface numbers — ERA 4.18 and WHIP 1.454 compared to 4.8 and 1.533 for Rosario Rodriguez. By the career numbers, John Lannan had the better of this cross-role comparison — though era context would sharpen the verdict.