Don Cooper vs. George Mack — Career Comparison

George Mack built a career as a starting pitcher and Don Cooper as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Don Cooper posted stronger surface numbers — ERA 5.27 and WHIP 1.723 compared to 7.19 and 1.890 for George Mack. By the career numbers, Don Cooper had the better of this cross-role comparison — though era context would sharpen the verdict.