Ronald Herrera vs. David Holmberg — Career Comparison

David Holmberg built a career as a starting pitcher and Ronald Herrera as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. David Holmberg posted stronger surface numbers — ERA 5.49 and WHIP 1.713 compared to 6 and 1.333 for Ronald Herrera. By the career numbers, David Holmberg had the better of this cross-role comparison — though era context would sharpen the verdict.