Jim Brosnan vs. John Mitchell — Career Comparison

John Mitchell built a career as a starting pitcher and Jim Brosnan as a reliever — different jobs with different demands — but on the metrics that apply to both, a comparison is still worth making. Jim Brosnan posted stronger surface numbers — ERA 3.54 and WHIP 1.379 compared to 4.35 and 1.550 for John Mitchell. By the career numbers, Jim Brosnan had the better of this cross-role comparison — though era context would sharpen the verdict.