Jake Cousins vs. Jerry Koosman — Career Comparison

Jerry Koosman built a career as a starting pitcher and Jake Cousins as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jake Cousins posted stronger surface numbers — ERA 2.78 and WHIP 1.279 compared to 3.36 and 1.290 for Jerry Koosman. By the career numbers, Jake Cousins had the better of this cross-role comparison — though era context would sharpen the verdict.