Jonathan Heasley vs. Nivaldo Rodriguez — Career Comparison

Jonathan Heasley built a career as a starting pitcher and Nivaldo Rodriguez as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Nivaldo Rodriguez posted stronger surface numbers — ERA 4.5 and WHIP 1.875 compared to 5.89 and 1.475 for Jonathan Heasley. By the career numbers, Nivaldo Rodriguez had the better of this cross-role comparison — though era context would sharpen the verdict.