Carlos Frias vs. Bill Koski — Career Comparison

Carlos Frias built a career as a starting pitcher and Bill Koski as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Carlos Frias posted stronger surface numbers — ERA 4.5 and WHIP 1.395 compared to 6.67 and 2.000 for Bill Koski. By the career numbers, Carlos Frias had the better of this cross-role comparison — though era context would sharpen the verdict.